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 6145-01-365-6527
NSN 4140-00-122-0593
NSN 6650-01-232-7744
NSN 5905-00-804-1737
NSN 6610-00-466-3104
NSN 6620-01-042-2046
NSN 5855-00-688-9954
NSN 6150-00-469-9383
NSN 6240-00-267-7428
NSN 5920-00-004-6372
NSN 5835-01-545-5689
NSN 5905-01-393-7917