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 6620-01-068-4498
NSN 5960-01-481-3722
NSN 5996-00-678-8507
NSN 6240-01-052-5971
NSN 4140-00-197-9712
NSN 6650-01-012-3290
NSN 5855-01-103-1474
NSN 6220-01-641-1319
NSN 5945-01-336-2973
NSN 5999-01-648-0124
NSN 5920-00-175-4577
NSN 6610-01-236-8359