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 5960-01-605-9921
NSN 6240-01-285-0927
NSN 6620-00-860-9911
NSN 6685-00-168-0847
NSN 5920-00-427-7267
NSN 5998-01-087-8112
NSN 6650-01-125-4785
NSN 6150-01-569-5999
NSN 5965-00-422-5415
NSN 5930-00-383-5656
NSN 4140-00-701-0406
NSN 4140-01-535-8719