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 5905-01-386-9548
NSN 6145-00-959-7610
NSN 6610-01-551-6425
NSN 5999-01-553-2970
NSN 6150-01-209-0834
NSN 6320-00-270-8222
NSN 5960-00-369-7460
NSN 5945-01-051-4905
NSN 5835-01-030-8914
NSN 5920-01-418-4381
NSN 6130-00-260-1791
NSN 7035-01-421-4446