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 6135-01-268-7056
NSN 6620-01-275-9777
NSN 6145-00-078-5751
NSN 6620-01-400-2221
NSN 4140-01-642-2927
NSN 6620-01-068-4498
NSN 5950-01-401-5321
NSN 5855-01-087-1417
NSN 6135-00-062-5080
NSN 5945-00-012-5437
NSN 6620-01-386-5543
NSN 6645-01-160-7707