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 5990-00-140-4559
NSN 5975-00-152-2591
NSN 6130-00-337-4695
NSN 6650-01-185-2544
NSN 5835-01-202-9673
NSN 5985-01-384-3317
NSN 5999-01-544-6651
NSN 6220-00-193-0423
NSN 5910-00-541-1381
NSN 6650-01-524-4589
NSN 5975-01-029-4176
NSN 6620-01-578-7561