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 5998-01-353-5287
NSN 6135-00-110-1981
NSN 5915-01-471-2456
NSN 5925-00-599-6339
NSN 6135-00-016-0071
NSN 6610-01-192-0136
NSN 5835-00-572-1309
NSN 5905-01-427-3804
NSN 5990-01-334-8634
NSN 5835-00-269-2232
NSN 6220-01-551-8032
NSN 6220-00-001-4523