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 5960-00-597-2680
NSN 6645-01-510-3496
NSN 6610-01-415-5877
NSN 2925-01-461-6372
NSN 6610-01-554-8225
NSN 5990-01-491-1397
NSN 5996-00-611-2641
NSN 5996-00-248-7061
NSN 6610-00-841-8221
NSN 4140-01-109-2696
NSN 5895-00-372-5493
NSN 6320-01-265-8703