MIL-PRF-19769C(NAVY)
2.3 Non-Government publications. The following documents form a part of this document to the extent
specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or
contract.
ASTM INTERNATIONAL
ASTM D395
-
Standard Test Methods for Rubber Property Compression Set (DoD
adopted)
ASTM D412
-
Standard Test Methods for Vulcanized Rubber and Thermoplastic
Elastomers Tension (DoD adopted)
ASTM D792
-
Standard Test Methods for Density and Specific Gravity (Relative
Density) of Plastics by Displacement (DoD adopted)
ASTM D2240
-
Standard Test Methods for Rubber Property Durometer Hardness (DoD
adopted)
(Copies of these documents are available from ASTM International, 100 Barr Harbor Dr., PO Box C700, West
Conshohocken, PA 19428-2959 or online at www.astm.org.)
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 First article. When specified (see 3.1.1 and 6.2), a sample shall be subjected to first article inspection in
accordance with 4.2.
3.1.1 First article inspection. First article inspection shall be performed when one or more of the following
apply:
a.
Upon initial offering of a material to the government by the vendor.
b.
When any change in material formulation is made from previous first article test samples.
c. When any change in manufacturing processes or conditions are made from previous first article test
samples.
d. When the product being offered is manufactured at a plant different than that of previous first article test
samples.
e.
When required by the Naval Sea Systems Command.
3.2 General requirements.
3.2.1 First article samples. Unless otherwise specified (see 6.2), first article samples of the gaskets shall be
manufactured using the methods and procedures proposed for the production lot. These samples shall be tested as
specified herein, and are for the purpose of determining that the production item meets the requirements of this
specification and the design.
3.2.2 Material. The material shall be an oil-resistant synthetic rubber compound of the acrylonitrile-butadiene
copolymer type (see 6.3).
3.3 Dimensions. The gaskets shall be furnished in the configuration and to the dimensions on the drawings
specified (see 6.2).
3.4 Tolerances. Unless otherwise specified (see 6.2), tolerances shall be held within the limits specified on the
drawings.
3.5 Physical requirements. The synthetic rubber material shall conform to the following physical requirements.
3.5.1 Before aging.
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