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 2925-00-885-3979
NSN 5925-01-026-9649
NSN 6685-00-233-6563
NSN 5996-00-242-4384
NSN 4140-01-432-0292
NSN 6610-01-530-1313
NSN 5990-01-343-0449
NSN 6320-01-466-4175
NSN 4140-01-431-6560
NSN 6685-00-469-9323
NSN 6220-01-529-6112
NSN 6240-00-258-2389