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 6620-00-188-2560
NSN 5935-01-376-5551
NSN 6240-01-542-3823
NSN 5999-01-348-0769
NSN 5998-00-115-0061
NSN 6645-01-481-9834
NSN 5985-00-773-3437
NSN 5960-00-552-1501
NSN 6320-00-593-0379
NSN 6620-01-239-2345
NSN 5996-01-613-1207
NSN 5998-01-153-1751