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 6240-00-334-6766
NSN 6220-00-814-1598
NSN 6650-01-279-0658
NSN 6130-01-537-7590
NSN 6645-01-170-5402
NSN 6220-00-964-1042
NSN 5960-01-360-3639
NSN 5960-00-951-1777
NSN 6105-01-384-3687
NSN 6610-01-633-8931
NSN 6685-01-613-7273
NSN 2925-00-147-8150