A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 2925-00-065-2244
NSN 6135-01-202-8113
NSN 5945-00-959-6309
NSN 6110-01-613-1188
NSN 5935-01-120-3744
NSN 6620-01-441-7896
NSN 6110-00-053-9986
NSN 6105-00-491-9945
NSN 5950-00-203-5809
NSN 6220-01-196-2116
NSN 5950-01-519-2709
NSN 5915-01-337-0306