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 6645-01-180-6219
NSN 6620-01-109-2764
NSN 5960-01-406-0299
NSN 6645-01-063-8243
NSN 5945-01-394-1507
NSN 7035-01-042-0527
NSN 4140-01-160-7666
NSN 6220-01-174-2035
NSN 6105-01-245-8932
NSN 5920-00-362-1376
NSN 5925-00-546-8965
NSN 5925-01-317-6721