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 5990-01-305-4891
NSN 5915-01-264-3810
NSN 5998-01-417-2638
NSN 6610-00-061-7882
NSN 5920-01-117-2745
NSN 6320-00-925-0558
NSN 6240-00-762-7456
NSN 6110-01-324-4537
NSN 5935-01-658-5628
NSN 5975-01-088-2761
NSN 5930-01-363-9888
NSN 5960-00-273-3260