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 5920-00-561-1309
NSN 6645-00-226-2270
NSN 4140-01-219-4301
NSN 6110-01-608-3775
NSN 6610-00-273-9019
NSN 6130-01-564-3824
NSN 5920-01-104-4332
NSN 5996-01-504-7033
NSN 6130-00-973-7866
NSN 5998-01-207-6426
NSN 5990-01-080-0097
NSN 5998-01-194-4373