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 4140-01-317-1172
NSN 5999-01-066-2009
NSN 5925-00-450-9663
NSN 6150-01-531-6887
NSN 6645-00-235-4685
NSN 5835-00-941-4959
NSN 6130-00-683-1011
NSN 6650-00-622-4991
NSN 6220-01-087-6449
NSN 6650-00-698-5869
NSN 5990-00-011-2994
NSN 6645-01-082-0518