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 5930-00-627-0277
NSN 2925-00-315-8442
NSN 5835-01-013-9321
NSN 6135-01-164-3561
NSN 6645-00-825-2448
NSN 5990-00-005-5215
NSN 5985-00-812-3893
NSN 5920-00-780-5567
NSN 5999-01-208-7943
NSN 5920-01-339-7421
NSN 5930-01-140-3142
NSN 6645-01-073-5302