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 4140-01-010-2592
NSN 6320-00-823-2015
NSN 6610-00-134-5625
NSN 5998-01-025-1688
NSN 5910-01-264-8871
NSN 5855-01-161-8964
NSN 6685-00-492-9817
NSN 2925-01-370-6898
NSN 5999-01-122-8782
NSN 5855-00-631-4565
NSN 7035-01-602-9350
NSN 5975-01-634-0678