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 6610-00-175-7250
NSN 6610-01-102-2256
NSN 5920-01-522-0940
NSN 5975-01-099-6418
NSN 6130-01-614-8928
NSN 5990-01-555-6616
NSN 4140-01-032-0718
NSN 6135-01-216-7170
NSN 5920-01-016-1141
NSN 6620-00-658-6588
NSN 5910-00-281-2449
NSN 6145-00-269-4271