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 6135-00-412-1687
NSN 2925-01-127-0167
NSN 6650-01-334-2649
NSN 6240-01-348-0057
NSN 5965-00-464-6191
NSN 5945-00-282-3181
NSN 5910-00-126-0533
NSN 7035-01-323-0164
NSN 6135-01-062-5420
NSN 5950-00-192-1879
NSN 6145-00-925-7795
NSN 4140-00-738-2640