As differentiated by material which must conform to ships control center special quality control provisions
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 5999-00-826-8451
NSN 6645-00-130-8464
NSN 5935-01-200-9552
NSN 6150-00-341-3860
NSN 5975-00-813-9805
NSN 5999-01-245-8500
NSN 5925-01-528-1139
NSN 5925-01-467-2117
NSN 5920-00-462-7136
NSN 5910-00-689-2951
NSN 6320-01-426-8947
NSN 6105-01-217-4530