Oxygen clean requirement
A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.
Classification: Gaskets, washers and other seals, of vulcanized rubber other than hard rubber
NSN 6145-01-200-7075
NSN 5965-01-322-8136
NSN 5835-01-295-9220
NSN 5950-00-252-2564
NSN 5950-01-215-0610
NSN 5975-00-526-4701
NSN 5930-00-688-2590
NSN 5910-01-347-2934
NSN 5925-00-415-2286
NSN 5920-00-103-7642
NSN 6220-01-565-8177
NSN 5915-01-372-8918