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 4140-01-240-4616
NSN 5975-01-004-7966
NSN 5960-01-350-5332
NSN 6105-01-154-3090
NSN 5935-01-110-7997
NSN 5999-01-482-7880
NSN 6610-00-618-6192
NSN 5965-00-006-8004
NSN 5975-01-143-7753
NSN 5855-00-079-2370
NSN 6240-01-412-0715
NSN 6645-01-180-6219