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 5905-01-212-2043
NSN 5920-01-546-7966
NSN 6145-00-738-5601
NSN 5855-01-392-1110
NSN 6130-00-869-0758
NSN 5925-01-078-4765
NSN 4140-01-659-6573
NSN 5996-01-525-6937
NSN 5930-01-363-7353
NSN 5935-00-349-4879
NSN 6645-01-211-6502
NSN 4140-00-234-8524