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 6610-01-227-7221
NSN 6620-01-508-1996
NSN 5965-01-426-1707
NSN 5990-01-318-3238
NSN 6145-00-493-4073
NSN 6220-01-222-2146
NSN 4140-01-023-1537
NSN 6110-00-011-3711
NSN 4140-01-114-7417
NSN 5895-01-485-3394
NSN 5910-01-132-9375
NSN 2925-00-845-1480