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 5985-01-280-8308
NSN 5975-01-013-2391
NSN 6320-00-174-1362
NSN 4140-01-065-8148
NSN 5965-01-367-6483
NSN 6645-01-076-4655
NSN 5998-01-126-2610
NSN 6130-01-261-2271
NSN 6650-00-930-8825
NSN 4140-01-382-9517
NSN 5945-01-392-1068
NSN 5905-01-054-4559