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 5990-00-830-5051
NSN 5945-00-603-6962
NSN 6240-00-727-6423
NSN 6130-01-323-2500
NSN 5999-00-063-7765
NSN 4140-01-234-0175
NSN 6150-01-004-0855
NSN 6320-00-405-2348
NSN 5975-01-599-9387
NSN 6610-01-111-1954
NSN 5910-01-438-6748
NSN 6685-00-063-5922