MIL-PRF-9050G
AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)
ASTM B117
-
Salt Spray (Fog) Apparatus, Operating
ASTM D1149
-
Rubber Deterioration-Surface Ozone Cracking In A
Chamber
(ASTM documents may be obtained at www.astm.org or addressed to American Society for
Testing and Material, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.)
2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a
conflict between the text of this document and the references cited herein, the text of this
document takes precedence. Nothing in this document, however, supersedes applicable laws and
regulations unless a specific exemption has been obtained.
3. REQUIREMENTS
3.1 Qualification. Valves furnished under this specification shall be products that are authorized
by the qualifying activity for listing on the applicable qualified products list before contract
award (see 6.3).
3.2 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or
environmentally preferable materials should be used to the maximum extent possible, provided
that the material meets or exceeds the operational and maintenance requirements, and promotes
economically advantageous life cycle cost.
3.3 Materials. All materials shall be corrosion resistant or suitably treated to resist corrosion due
to electrolytic decomposition, salt fog, and any other atmospheric condition that may be
encountered during operational use or storage. All material used shall be capable of operating
safely in a pure oxygen and LOX environment. The use of toxic chemicals, hazardous
substances, or ozone depleting chemicals shall be avoided, whenever feasible.
3.3.1 Ozone resistance. Elastomer materials shall be ozone resistant.
3.3.2 Age. Elastomers, except silicone, shall be no more than 12 months old from the cure date
upon delivery.
3.4 Interface.
3.4.1 Dimensions. The dimensions of the valve shall conform to figure 1.
3.4.2 Threads. All pipe threads shall be in accordance with SAE-AS71051.
3.5 Performance.
3.5.1 Weight. The weight of the valve shall not exceed 0.25 pound.
3
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