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 6320-00-977-3930
NSN 6650-01-253-6794
NSN 5925-01-296-1006
NSN 7035-00-392-5417
NSN 5855-00-327-2112
NSN 6130-00-548-2952
NSN 6135-01-351-2690
NSN 6105-00-857-1186
NSN 7035-01-435-7962
NSN 5998-01-084-8496
NSN 6130-01-631-8460
NSN 5835-01-327-0770