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 6240-00-816-6749
NSN 6240-01-509-1905
NSN 5930-01-327-3344
NSN 5910-00-404-0287
NSN 6650-00-175-7520
NSN 5998-01-215-0439
NSN 4140-00-862-5644
NSN 5996-01-468-3313
NSN 6150-01-262-9606
NSN 6620-01-270-8364
NSN 5990-00-073-2676
NSN 5895-01-408-2655