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 5910-01-577-0389
NSN 5990-01-315-3754
NSN 5835-00-217-2147
NSN 6320-01-384-3850
NSN 5960-01-462-7704
NSN 5905-01-646-8049
NSN 6620-01-578-1984
NSN 5910-01-406-3880
NSN 5920-00-866-3945
NSN 6320-01-436-0513
NSN 5925-01-077-1032
NSN 6135-01-394-4160