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 5945-00-372-1952
NSN 2925-01-097-0903
NSN 5999-01-244-8649
NSN 5910-00-929-5905
NSN 5998-01-525-7685
NSN 6320-00-322-3460
NSN 6105-01-384-7386
NSN 5930-01-397-4726
NSN 6220-00-734-0276
NSN 5895-01-058-7456
NSN 5950-00-147-7866
NSN 5985-00-629-1992