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 6150-01-436-5181
NSN 5910-01-461-7800
NSN 5998-01-096-1185
NSN 5975-00-961-5475
NSN 5945-01-111-7581
NSN 5855-00-055-1694
NSN 5945-01-634-0588
NSN 5985-01-403-2835
NSN 5965-00-734-5053
NSN 6610-01-040-2471
NSN 6220-00-079-0178
NSN 5999-01-512-9997