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 6620-00-596-1951
NSN 6620-00-632-3631
NSN 6240-01-186-6448
NSN 7035-01-366-5912
NSN 5999-01-349-0870
NSN 6240-00-224-5323
NSN 6135-01-532-0775
NSN 6135-00-995-1089
NSN 5998-01-167-5377
NSN 5905-00-558-7619
NSN 5999-01-478-1213
NSN 5895-01-612-8607