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 5975-00-200-2002
NSN 5999-01-578-6827
NSN 5920-01-289-0852
NSN 6650-01-046-7795
NSN 6645-00-445-8143
NSN 6645-01-573-0553
NSN 2925-00-814-0429
NSN 6620-00-087-7930
NSN 6645-01-113-2525
NSN 6685-01-374-5817
NSN 6610-00-150-7002
NSN 6650-01-560-8576