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 5990-01-328-2385
NSN 2925-00-088-6790
NSN 6145-01-275-0533
NSN 5855-01-190-7049
NSN 4140-01-513-8649
NSN 5985-00-430-1583
NSN 6240-01-456-2965
NSN 4140-01-076-3720
NSN 6645-00-211-6906
NSN 5835-01-502-9228
NSN 5996-01-359-7642
NSN 5975-00-518-1733