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 4140-01-085-3997
NSN 6320-01-422-1212
NSN 5835-00-419-6576
NSN 5998-00-526-9253
NSN 5935-01-206-7111
NSN 6620-01-567-9933
NSN 6620-01-024-7003
NSN 6150-01-148-6462
NSN 6620-00-224-9093
NSN 6645-00-474-5689
NSN 5915-01-362-7802
NSN 5910-01-100-1161