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 5905-00-464-7043
NSN 5985-01-152-6754
NSN 5895-01-358-0207
NSN 5910-01-158-4387
NSN 6685-01-107-8319
NSN 6620-01-459-6401
NSN 5920-00-322-8618
NSN 5835-01-424-4577
NSN 6135-01-603-8367
NSN 5999-00-992-5194
NSN 6320-01-220-2264
NSN 5835-01-238-3381