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 5920-00-755-6265
NSN 6620-01-523-0713
NSN 6145-01-164-4549
NSN 6610-01-642-0258
NSN 6620-00-851-1487
NSN 6110-01-266-2847
NSN 6650-01-526-1710
NSN 4140-00-085-1355
NSN 6645-00-061-1885
NSN 6145-00-036-7085
NSN 5985-00-008-6754
NSN 5910-00-081-2215