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 5996-00-171-3071
NSN 6320-01-465-2028
NSN 6650-00-287-5868
NSN 6145-01-349-3203
NSN 4140-01-250-7159
NSN 6645-01-580-9570
NSN 5915-00-900-7577
NSN 5915-00-420-1557
NSN 5975-01-157-8140
NSN 5965-00-006-8004
NSN 6135-01-070-2580
NSN 6105-01-607-0381