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 4140-00-456-0902
NSN 6135-00-932-3136
NSN 5910-01-097-1021
NSN 6105-01-224-0087
NSN 4140-00-660-8699
NSN 5975-01-478-9651
NSN 5960-01-513-3230
NSN 6145-01-235-0187
NSN 6650-00-926-7709
NSN 6105-00-038-3957
NSN 6240-00-594-7138
NSN 6620-00-905-6590