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 5920-00-931-7979
NSN 5930-01-382-8732
NSN 2925-01-424-0235
NSN 4140-01-150-7550
NSN 5960-00-591-2235
NSN 5835-01-574-0080
NSN 6135-00-351-8606
NSN 6105-01-141-7727
NSN 5950-01-451-4538
NSN 6130-00-017-9339
NSN 5996-00-279-1510
NSN 6645-01-246-2725