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 4140-01-249-7948
NSN 6150-01-269-4061
NSN 6685-00-141-4300
NSN 5920-01-560-3362
NSN 5950-01-291-2903
NSN 5920-01-120-4300
NSN 5990-01-127-9294
NSN 5910-01-146-6683
NSN 5990-01-443-2931
NSN 5950-01-388-0860
NSN 6320-01-462-3555
NSN 5910-01-577-5519