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 5999-01-237-9901
NSN 5910-00-687-1254
NSN 6650-01-472-5028
NSN 4140-01-461-7885
NSN 5895-00-907-0761
NSN 6220-01-187-7119
NSN 5855-01-073-6102
NSN 6620-01-224-9331
NSN 6105-00-855-7787
NSN 5920-01-605-4077
NSN 5895-00-909-6072
NSN 6610-00-764-4127