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 5999-00-027-8248
NSN 6150-01-286-1915
NSN 2925-01-317-4543
NSN 6645-00-411-3179
NSN 5935-00-272-7035
NSN 6135-00-180-5125
NSN 5965-00-075-1485
NSN 5925-01-629-6437
NSN 5930-01-347-2139
NSN 6650-00-066-4999
NSN 2925-01-163-6716
NSN 5999-00-139-6163