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 6110-00-659-3348
NSN 6105-01-400-1258
NSN 5835-01-258-5353
NSN 5935-01-445-1431
NSN 5975-01-509-0416
NSN 6150-01-320-9191
NSN 5895-01-422-1398
NSN 6130-01-242-6195
NSN 5935-01-327-1477
NSN 2925-00-891-9289
NSN 5855-01-580-2322
NSN 5935-01-444-1796