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 5990-01-463-2279
NSN 6240-01-181-1187
NSN 5996-00-823-6081
NSN 6150-01-461-2787
NSN 5998-01-228-0161
NSN 6320-01-425-1417
NSN 6220-01-347-3578
NSN 5930-00-753-7890
NSN 6320-01-143-3597
NSN 6130-01-373-4468
NSN 5998-01-500-8624
NSN 5975-01-493-7476