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 5990-01-188-7309
NSN 6110-01-165-9306
NSN 4140-00-428-7589
NSN 6320-01-220-2264
NSN 6135-01-010-0891
NSN 5999-00-038-6141
NSN 6145-01-157-3488
NSN 6240-00-143-7513
NSN 5915-01-014-6309
NSN 5915-00-203-5890
NSN 5965-01-181-5706
NSN 5999-01-365-0766