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 6110-00-643-4832
NSN 6645-01-447-3143
NSN 6220-00-633-1684
NSN 5975-00-377-0650
NSN 5925-00-103-6469
NSN 6145-01-613-2981
NSN 5990-01-586-8202
NSN 4140-01-201-3380
NSN 5930-01-440-9959
NSN 5835-01-416-6455
NSN 5975-00-317-5689
NSN 5925-01-536-0738