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 5965-01-168-8180
NSN 5920-00-004-0274
NSN 5996-01-561-1367
NSN 5965-01-465-4370
NSN 5920-00-237-0995
NSN 5930-01-205-5153
NSN 6240-00-038-7540
NSN 5895-01-521-6152
NSN 5945-01-225-0663
NSN 6220-00-755-7546
NSN 5990-01-607-9433
NSN 5990-00-372-5177