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 5930-01-117-0596
NSN 5965-01-431-9723
NSN 4140-00-238-9940
NSN 6240-00-905-5680
NSN 6220-00-396-0039
NSN 6620-00-127-0816
NSN 4140-00-946-5441
NSN 5835-01-616-6131
NSN 6240-01-558-8379
NSN 6135-00-519-1325
NSN 6320-00-070-4544
NSN 5855-01-366-2429