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.
NSN 4140-00-823-9194
NSN 6685-00-475-5614
NSN 5910-00-522-5208
NSN 6320-01-129-9656
NSN 6150-01-208-3449
NSN 6650-00-238-1199
NSN 5999-00-167-1136
NSN 4140-00-110-4524
NSN
NSN 5985-01-415-3866
NSN 5930-01-273-2561
NSN 6645-00-221-7071