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 5835-01-362-0305
NSN 5990-00-396-8338
NSN 7035-00-104-7613
NSN 5985-01-295-3424
NSN 5920-01-449-1793
NSN 5999-01-462-2644
NSN 5985-01-047-1332
NSN 6685-01-567-3176
NSN 5985-01-476-7254
NSN 5935-00-325-6052
NSN 6685-01-375-8187
NSN 5975-01-354-6251