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 2925-00-915-1827
NSN 5975-01-578-7001
NSN 5996-00-182-6484
NSN 6650-01-091-4241
NSN 5960-01-462-7704
NSN 6610-00-496-7842
NSN 6105-00-833-8045
NSN 5998-01-023-2949
NSN 6105-01-613-1422
NSN 5975-00-633-7633
NSN 5999-01-547-9604
NSN 5855-01-278-8922