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 5996-01-633-7979
NSN 5920-00-556-2704
NSN 5990-00-386-4951
NSN 2925-00-278-9468
NSN 4140-00-299-0595
NSN 6110-00-790-2781
NSN 6130-01-206-4587
NSN 5975-01-538-8261
NSN 5945-01-429-7567
NSN 5945-01-101-7675
NSN 6650-00-499-7446
NSN 5930-01-546-8723