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 5975-01-126-9744
NSN 6150-00-281-3447
NSN 5910-01-028-9298
NSN 6130-01-033-8533
NSN 6240-01-482-4819
NSN 2925-01-077-3310
NSN 5950-00-104-5908
NSN 5999-01-492-5653
NSN 5975-01-629-4225
NSN 6220-00-159-2509
NSN 7035-01-265-2301
NSN 5855-01-020-7982