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 5945-00-686-1534
NSN 6610-01-144-4228
NSN 6135-01-109-8763
NSN 5999-01-506-0802
NSN 5965-00-950-0602
NSN 5920-01-159-7949
NSN 4140-00-606-9453
NSN 2925-01-576-6206
NSN 6135-00-334-4500
NSN 6135-01-089-4888
NSN 6110-01-241-2301
NSN 5910-00-939-2401