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 4140-00-956-9225
NSN 5999-01-141-4994
NSN 6320-00-368-2803
NSN 6240-01-165-2693
NSN 6150-01-558-7675
NSN 5910-01-112-0688
NSN 6220-01-553-7778
NSN 5996-01-245-1705
NSN 2925-00-737-6476
NSN 5996-01-527-9707
NSN 6145-01-335-6589
NSN 5915-00-199-9554