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 4140-01-486-2030
NSN 2925-00-805-6481
NSN 5905-00-687-2121
NSN 7035-01-062-0184
NSN 2925-00-254-9776
NSN 6110-01-146-5796
NSN 5996-01-614-3619
NSN 6645-01-426-8621
NSN 5996-01-181-5438
NSN 6645-00-515-6148
NSN 5930-01-196-8595
NSN 6240-01-528-1585