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 5920-00-621-6601
NSN 5855-00-631-4565
NSN 5990-01-219-9018
NSN 5996-01-488-4710
NSN 6320-01-476-7476
NSN 6650-01-090-0099
NSN 6645-01-235-1601
NSN 5855-01-548-0500
NSN 5998-00-553-3011
NSN 6645-01-597-2222
NSN 5910-00-773-2652
NSN 5945-01-604-8624