Underwater life support iaw navsea instruction 10560.2b
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 7035-01-576-9455
NSN 5999-01-492-5856
NSN 6610-01-354-7963
NSN 2925-00-263-2714
NSN 2925-01-076-5219
NSN 5910-01-388-1146
NSN 5915-01-438-6668
NSN 7035-01-123-8723
NSN 4140-00-171-1387
NSN 2925-00-347-7893
NSN 5965-01-173-7521
NSN 6110-01-469-5921