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 4140-00-177-8858
NSN 6620-01-608-8548
NSN 5945-01-453-8873
NSN 6135-01-633-8502
NSN 5855-01-551-4525
NSN 6650-01-100-3185
NSN 6135-00-269-5843
NSN 6110-00-910-2756
NSN 6610-01-334-8883
NSN 6610-01-441-1581
NSN 6645-00-960-6594
NSN 6620-01-497-3744