Designing and Manufacturing Valves for Land, Sea, Air and Space Applications since 1975.



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This document is controlled by the Valve Research & Mfg Co Quality Assurance Department and is subject to revision (indicated by date) without revising the basic QP 6.0. This document will be distributed internally and to each affected supplier

It is the practice of Valve Research to reference these Supplemental Purchase Order Conditions (SPOC) on the face of purchase orders issued to suppliers. Each SPOC has been assigned a unique number and only those numbers that are applicable to the purchase order will appear. A supplier’s failure to comply with all purchase order requirements, including SPOCs, may result in the shipment not being accepted and returned to the supplier.

101            Manufacturer's Catalog, Drawing, etc. | top |

                  Supplier shall furnish one (1) each of manufacturer's catalog,  or drawing, fully descriptive of the item being supplied on this order, with the first shipment of the item.


103            Priority Rating | top |

                  This is a rated order certified for national defense use and you are required to follow all of the provisions of the Defense Priorities and Allocation System regulation (15 CFR 350). See Purchase Order call out for appropriate priority rating. (Ie. DO-A1, DX-A1, DO-A4)


201            Supplier's Quality System | top |

                  Supplier's Quality System must comply with the requirements of Specification AS9100.


202            Supplier's Quality System | top |

                  Supplier's Quality System must comply with the requirements of Specification ISO 9001.


203            Supplier's Inspection System | top |

                  Supplier's Inspection System must comply with the requirements of Specification MIL-I-45208.


204            Supplier's Inspection System | top |

                  Supplier's Inspection System must comply with the requirements of Specification ISO 9002.


205            Supplier's Inspection System | top |

                  Supplier shall perform, or have performed, all inspection necessary to assure that the material or services offered for acceptance conform to all purchase order requirements. The supplier's system shall also include:

                  (a) compliance to ANSI Z540.1

                  (b) identification and control of nonconforming material.

                  (c) response to corrective action requests.


                  VRM and the Government reserve the right to verify, at VRM or the supplier's facility, compliance to all contractual requirements.


207            Supplier's Inspection System | top |

                  No formal inspection system required. Supplier must  respond to corrective action requests. VRM and the Government reserve the right to verify, at VRM or the supplier's facility, compliance to all contractual requirements.


209            Customer/Government Review | top |

                  During performance of this order, your Quality Control or Inspection System and manufacturing processes are subject to review, verification and analysis by authorized Customer/Government Representatives.


211            Non-conforming Material | top |

      Unless written authorization is given, by VRM Quality Assurance, the supplier shall deliver materials and/or equipment in complete conformance with the contract requirements. Supplier shall notify Valve Research, in writing, of any nonconformance found to a purchase order or drawing requirement. Lots or units found to be non-conforming as a result of VRM inspection may be returned to the supplier. Valve Research reserves the right to debit any supplier for repair costs or for replacement costs (labor and material) of non-conforming material.


213            Corrective Action | top |

                  In the event parts and/or processes for parts furnished on this order are rejected and corrective action is requested by VRM Quality Assurance, the supplier shall respond with positive corrective action by the "Due Date" established on the C.A.R.E. form.


215            Certificate of Conformance | top |

                  Supplier shall submit with each shipment a certification worded substantially as follows: "This is to certify that all articles delivered under this order conform to all applicable drawings, specifications, AN, MIL, NAS, etc. and evidence of such is on file and subject to buyer’s examination." As a minimum, the certification shall include:

                        a. VRM Purchase Order number

                        b. VRM part number and revision level, if applicable

                        c. Manufacturer's part number, if applicable

                        d. Quantity furnished; and serial numbers, if applicable

                        e. Signature of supplier representative and date

                        f.  Purchase Order line item #


217            Specification Compliance | top |

                  Supplier to warrant that adequate data showing that all components and materials used in the articles furnished on this order comply with specified chemical and physical properties, is on file and subject to examination by Valve Research & Mfg Co.

                  Supplier further warrants that articles furnished are in compliance with all applicable specifications, current as of the date of this order.



  219            Data Sheets and/or Test Reports | top |

                  Supplier shall furnish test results (data sheets) for each item on this order that require functional test.


221            VRM Furnished Gaging | top |

                  VRM to furnish special gaging for this order. Supplier is responsible to properly maintain, use and assure the accuracy of the furnished gaging while in their possession. All furnished gaging must be returned upon completion of the order, unless otherwise directed by authorized VRM personnel.


223            Supplier Furnished Raw Material | top |

                  Each lot of material shipped shall be accompanied by test reports verifying the chemical and physical properties of the material to the applicable material specification (latest revision). Certifications must contain all of the data/test values as established by the pertinent specification. The certifications shall also include the mill source and the material heat number. If supply house certs are submitted in lieu of the mill certs they must contain all of the pertinent information as reported by the mill source. Material must be produced by a domestic source or from a country that the United States has a biliateral airworthiness agreement with (Ref. Advisory Circular 21-18).

                  Exception: Unless otherwise specified, certifications stating the chemical and physical ranges are acceptable for aluminum alloys, core iron, and nonmetallic materials only.


224            VRM Supplied Material | top |

Valve Research shall supply the raw material. The supplier shall maintain control and traceability of the material that has been supplied by VRM. Parts produced by the supplier shall be traceable to the lot of raw material that was used. The supplier shall return to VRM all acceptable parts, scrap parts, and unused material. The suppliers packing slip shall indicate the quantity of parts and material returned to VRM.


225            Use of Approved Sources | top |

                  All special processes (anodize, heat treat, plating, etc.) shown on the VRM drawing may only be performed by a source that is approved by VRM for that specific process. Contact VRM Purchasing for information regarding approved sources.


227            Special Process Certification | top |

                  A certification shall be submitted for each process performed to a VRM, industry, federal, or military specification (latest revision) that is specified on the drawing or Purchase Order. As a minimum, the certification shall include: specification and revision level, type, class, or grade (if applicable), date, process results (ie. plating thickness, hardness, temperatures, time, etc.), quantity of parts processed and accepted, and signature of representative of the performing source.



229            Critical Process | top |

                  This order is classified as a "critical process". No change shall be made in the process that would alter the process results or affect the product's form, fit, or function without prior purchaser approval.

                  Form, fit, and function include:

                        a. performance

                        b. reliability and maintainability

                        c. weight, balance, and moment of inertia

                        d. interface characteristics

                        e. electromagnetic characteristics


231            Elastomer Cure/Assembly Data | top |

                  When suppliers provide elastomeric parts and/or assemblies containing such parts, which have a limited life or are subject to age control, the supplier shall submit with each shipment a statement on the packing slip or cert specifying the cure date for each pertinent part and/or the assembly date for each assembly. Packages and containers as well as assemblies and parts shall be marked with the required dates (ie. 1Q91).


233            Records Retention | top |

                  All quality records and related documents associated with a product manufactured or processed by a supplier shall be retained for a minimum of 25 years after the completion of the contract, unless otherwise directed by the purchase order.


235            Packaging and Preservation | top |

                  All parts shall be adequately preserved and packaged as to prevent damage and deterioration in transit and assure that the parts are received at VRM in an acceptable condition. If parts are received from VRM in special containers, the same containers must be used when returning the parts to VRM. Unless otherwise specified, standard commercial packaging and preservation methods shall apply.


237            Government Source Inspection | top |

                  Government inspection is required prior to shipment from your facility. Upon receipt of this order, promptly notify the Government Representative who normally services your facility so that appropriate planning for Government inspection can be accomplished. In the event the Government Representative or office cannot be located, notify VRM purchasing immediately.


238                  Sampling Inspection | top |

If sampling inspection is used for the acceptance of contracted product or services the sampling plan shall be based upon ANSI/ASQC Z1.4 (latest revision). The plan used shall not be less stringent than Single Sampling Inspection Level II unless otherwise specified. The acceptance number for all sampling functions shall be zero (C=0).




239                  Right-of-Entry | top |

Valve Research, our customers, and regulatory agencies have the right of entry to any place necessary to determine and verify the quality of contracted work, records, and material.


240                  Key Characteristics | top |

If key characteristics are shown on the VRM drawing the supplier shall develop a process control plan to monitor and control the key characteristics. The plan shall be subject to approval by VRM. The plan shall include, as a minimum:


Key characteristics to be controlled


Point in the production cycle where measurements are taken

Type of control charts/SPC techniques used

Sample size

Frequency of measurements


241            Lot Control Traceability | top |

The supplier shall establish systems and controls, which can provide complete traceability to raw material and processes for parts, produced. The system shall be capable of identifying the raw material used in any given lot of product, as well as the acceptance records for that material.


242            During performance of work relative to a Valve Research purchase order, seller shall give buyer written notice of any changes in facility location or company name, changes in senior and/or quality management, or other organizational changes that may affect product quality. The supplier shall flow down to subtier sources all applicable requirements of this order to assure compliance to all contractual requirements.


243            Flight Safety Part – Handle & Package With Care | top |

The part or process on the order is classified as “Flight Safety” and contains Flight Safety Characteristics (FSC). FSCs shall be identified on the part drawing or documentation by “<FSC>”. The process and technique used to produce, or that affects, an FSC must be approved by VRM. Once approved, the process is considered frozen. No changes to an approved/frozen process or the sequence of operations shall be made without written approval from VRM. Certification must attest to the fact that the parts/process was produced to an approved process and indicate the revision level of the process. No MRB authority is granted for Flight Safety Parts. Manufacturing and inspection records relative to FSCs shall be available to VRM for at least 40 years after delivery.



245            Prohibited Sources | top |

VRM suppliers and/or sub-tier suppliers are prohibited from using any source listed on the US government Excluded Parties List System (EPLS) (ref. in the production of products to be delivered to VRM.

247            Training | top |

Suppliers shall ensure that all personnel performing activities on VRM product affecting quality have been suitably trained. Personnel performing assigned tasks must be qualified on the basis of appropriate education, training, and/or experience. The supplier shall ensure that training records are maintained and available upon request.


249            Industry Specifications and Standards | top |

For all Military, Federal, and Industry specifications and standards, the supplier shall comply with the revision in effect at the time of the VRM purchase order is issued. VRM reserves the right to request a different revision that would be specified on the purchase order.


251            Travelers | top |

Suppliers shall maintain a traveler or equivalent control mechanism that directs procedures appropriate for the control of quality and configuration through all stages of production. For VRM designed hardware when VRM changes P/Ns, dash numbers, or P/N revisions AND there is work in process (WIP) for a given contract, the rework instructions shall be revised to address the pertinent changes.


253            First Article Inspection Reports | top |

A First Article Inspection (FAI) shall be provided with the first shipment of product in accordance with SAE AS 9102 (or equivalent) and the additional requirements below. A full or partial FAI shall be performed for affected characteristics unless otherwise specified by VRM when any of the following occurs:

·       Change in design

·       Change in manufacturing source, process, inspection method(s), location of

manufacture, tooling or materials.

·       Change in numerical control program or translation to another media.

·       Natural or man-made event, which may adversely affect a manufacturing process.

·       Lapse in production for two years or as specified by VRM.

VRM reserves the right to exercise the requirement of additional and/or periodic/repeat FAI requirement on a part number basis to assure continued product conformity. In addition, VRM reserves the right to validate multiple production lots if needed to determine overall process capability.


255            Supplier Control | top |

Suppliers, including dealers and distributors, are responsible for ensuring that the applicable requirements of this purchase order are imposed on lower tier procurements for raw material, components or process services being used in the manufacture of products or services being provided.


257            Business Continuity Management | top |

The Supplier shall ensure their Company has robust Business Continuity Management (BCM) processes in place that include disaster recovery and preparedness. The Supplier shall document a Business Continuity Plan which details what the company would do in the event that key people, processes or technology was to become unavailable. This Business Continuity Plan shall be applicable, including but not limited to, natural disasters, labor disputes, lockouts, evictions, power or systems failures, hazardous spills, fire, floods, explosions, sabotage, riots, war or other civil disturbances, and voluntary or involuntary compliance with any laws, regulations, or requirements of any government authorities.

The Supplier shall document a Business Continuity Plan which details what the Company would do in the event that key people, processes or technology was to become unavailable. This Business Continuity Plan shall be applicable, including but not limited to, natural disasters, labor disputes, lockouts, evictions, power or systems failures, hazardous spills, fire, floods, explosions, sabotage, riots, war or other civil disturbances, and voluntary or involuntary compliance with any laws, regulations, or requirements of any government authorities.

General information regarding how to develop a Business Continuity Plan can be found on the internet. Some helpful website links are listed below:


The Supplier’s BCM Plan should also include planned actions to mitigate any disruptions in supply from critical sub-tiers.


259            Material Test Report Certifications - Raw Material | top |

A Material Test Report Certification is to be used by Suppliers that provide raw material

(bar, billet, sheet, plate, etc.) directly to VRM. The Supplier shall provide with each delivery of products on the Contract a Material Test Report Certification that shall contain as a minimum, the following information:

a.     Material description, name or designation, including, as applicable, size or weight,

alloy, type, class, grade or condition.

b.     Lot, batch or heat number.

c.     The applicable specification and revision to which the material complies.

d.     The laboratory test report or certified statement of the material mechanical properties.

e.     The laboratory test report or certified statement of chemical analysis of the material

showing the actual percentage of each element contained in the material or material

conformance within the range permitted by the applicable specification.

f.      When applicable, the laboratory test report for any special processes performed, and

nondestructive testing accomplished, in accordance with the applicable specification

and showing material acceptance.

The Supplier shall provide on the Material Test Report Certification, packing list/shipper or on a separate document then of the C of C.


261           Suspected, Fraudulent, and Counterfeit Control Policy | top |

1.     All suppliers shall provide documented evidence that all part(s) shipped to VRM are of authentic nature. Acceptable forms of evidence are source of manufacture, Testing data, and the preferred form Certificate of Conformance.

2.     All suppliers shall be responsible to flow down this SPOC if the part components are procured from an sub-contractor.

3.     All suppliers shall reference specification AS5553 in which this SPOC is based. The supplier is obligated to meet the requirements listed within AS5553.

4.     All suppliers shall keep all applicable records of documents on file at their facility of manufacture. VRM shall request any applicable document specified within this document from the respective supplier as required.

5.     Supplier shall notify VRM management within 24 hours if supplier detects suspected, fraudulent or counterfeit part(s) that have been shipped to VRM.

6.     All suppliers shall maintain a method of verifiable traceability back to the manufacturer of the procured part(s).

7.     All suppliers shall supply parts that meet any mil-spec that is flowed down from VRM. This mil-spec shall be listed on the C of C.


All suppliers are required to create, and maintain a counterfeit control plan. The supplier should ref. AS5553 specification as a guideline for the counterfeit control plan.


263            Special Processes (NADCAP) | top |

All suppliers and their sub-tier suppliers shall use NADCAP approved vendor sources for special processing were required by VRM. If NADCAP approved sources are not required, all suppliers shall use customer approved vendor sources for special processing.


265            Preservation | top |

In order to detect deterioration, the condition of product in stock should be assessed at appropriate planned intervals. The supplier should use an inventory management system to optimize inventory turns over time and should assure stock rotation, such as “first-in-first-out” (FIFO) method is utilized.


267            Shelf-Life | top |

Supplier is required to provide items that do not exceed 4 quarters (1 year) from cure date at time of receipt by VRM.



269            FOD Control Program | top |

The supplier shall establish, document, and maintain a program to control and eliminate Foreign Object Damage (FOD) and/or contamination during the Supplier’s manufacturing, assembly/test, and inspection operations. When applicable, the Supplier’s FOD control program shall be flowed down to Supplier’s sub-tier sources. MI-STD 980 or NAS-412 may be used as a guide to develop the FOD program.



271            Raw Material DFAR Requirements | top |

The raw material for part number referenced on this purchase order shall be melted from mills located in the United States, it’s possessions, Puerto Rico, or qualifying countries per DFAR 225.872-1. These metal are basically classified in 4 groups


·       Steels (Stainless, Hi-strength, etc.)

·       Nickel/Iron, Nickel/Cobalt – base alloys

·       Titanium/Titanium alloys

·       Zirconium/Zirconium – base alloys


                  For further information on this requirement see DFARS 252-225-7014, Alternate 1


273            REACH Compliance | top |

Seller shall bear full responsibility for continuous monitoring of the publication and updates of the European Chemicals Agency list of substances of Very High Concern (“SVHC”) (viewable at and immediately notify VRM buyer if the delivered Goods contain SVHCs > 0.1% by weight or substances restricted under Annex XVII of REACH.


The notification that Goods contain SVHCs shall include the name and weight of the substances(s) and the weight percentage present, if > 0.1% by weight of the delivered Good.


The presence of SVHCs < 0.1% by weight of the delivered Goods does not need to be reported.


Unreported SVHCs above the threshold or substances restricted under Annex XVII of REACH, may result in purchase order cancellation and/or return of Goods.


275           Fixed Process Control | top |

Supplier shall submit a manufacturing control plan (shop router/traveler) to the VR buyer for approval prior to commencement of manufacturing operations. The plan shall be revision controlled or date controlled to correspond with the VR drawing revision. As a minimum the plan shall include: revision level, operations performed, sequence of operations, equipment used, materials used, inspection operations, special processes performed (heat treat, anodize, plating, etc.) and special process sources used.


Supplier is required to notify VR buyer and obtain VR approval of all changes made to the approved fixed process (material, fabrication method, special processing sequence of operations, etc.). Ref. Note 1


Note 1 Fixed Process Change Guidelines/Examples
Insignificant Change - does not need to be communicated to VR

• Correcting typographical errors
• Adding additional information to clarify an existing requirement (does not change work performed)



Updated 06/17/2016