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 6135-00-010-5275
NSN 2925-00-010-9609
NSN 5935-00-036-3948
NSN 5910-00-127-7300
NSN 6320-00-500-4172
NSN 4140-01-559-2781
NSN 5999-00-410-0358
NSN 5975-01-283-1238
NSN 2925-00-383-3523
NSN 6610-00-360-2713
NSN 5945-00-741-0691
NSN 5910-01-376-4270