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 5930-00-064-7439
NSN 6145-01-388-1600
NSN 6620-01-184-3193
NSN 5835-01-250-2939
NSN 6650-00-346-8224
NSN 5965-00-430-4168
NSN 6150-01-091-7338
NSN 6105-01-142-8361
NSN 5996-01-623-8237
NSN 6240-01-120-3533
NSN 6220-00-542-4898
NSN 5905-01-573-3691