A-A-52302 Gasket, Split Integral, For Inland Petroleum Distribution System (Ipds) Snap-Joint CouplingThis item description covers a synthetic rubber gasket for use with the 6-inch IPDS snap-joint coupling. Two identical halves of this gasket are made to be a part of the coupling by manually pushing the protruding buttons into the holes provided in the coupling by hand. The gasket is intended for use with petroleum fuels.

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A-A-52302

Lubricants. High viscosity silicone oil such as Parker's Super-O-Lube or low temperature silicone grease such as Dow Corning's Molykote 55M shall be used as a lubricant for the gasket. Each package of 25 pairs of gasket halves shall be provided with a pint of Parker's Super-O-Lube lubricant or two 5.3 oz tubes of Dow Corning's Molykote 55M grease.

Quality assurance. The split integral gasket shall be examined for the following defects:

1. Gaskets not individually preserved, as specified.

2. Gaskets not consolidated, as specified.

3. Lubricant missing from the consolidated box.

4. Tests passed.

5. Certification provided.

Testing requirements. The gasket shall be tested in a joint consisting of two pipes and one coupling which will be furnished by the Government. The following deflection tests shall be performed to determine the suitability of gaskets as spares for the IPDS. The following deflection tests with the coupling joint located at the midspan of a 9-foot span shall be conducted. Deflection shall be measured in the vertical direction. Cycling time shall not exceed 60 seconds.

Pressure	Temperature	Deflection in inches	Number of Cycles to be Deflected
25 inches of HG vacuum	Ambient (23 �5 �C)	2.3 inches	5
900 psig	(73 � 2 �C)	2.1 inches	5
900 psig	(-35 � 2 �C)	2.1 inches	5

The manufacturer of a gasket who has already conducted the tests in this paragraph need not demonstrate the suitability of his gasket for use with the IPDS snap-joint coupling.

Contractor certification. The contractor shall certify that the product offered to the Government meets the salient characteristics of this description and that the product conforms to the producer's own drawings, specifications, standards, and quality assurance practices and is the same product as the manufacturer's current product offered by the contractor in the commercial marketplace for at least one year preceding the solicitation. The Government reserves the right to require proof of such conformance prior to first delivery and thereafter as may be otherwise provided for under the provisions of the contract.