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 5990-01-003-4209
NSN 5996-01-579-1971
NSN 6650-00-266-6808
NSN 6145-01-545-4074
NSN 7035-00-703-3535
NSN 5965-00-905-6895
NSN 5975-00-394-2545
NSN 5905-00-136-8430
NSN 5905-01-316-9512
NSN 4140-01-007-0161
NSN 5945-01-196-6030
NSN 6240-00-244-0483