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 6130-00-825-2654
NSN 5930-01-442-4757
NSN 5895-01-042-2114
NSN 6240-00-361-1421
NSN 5975-01-423-2152
NSN 5915-01-550-8028
NSN 6110-01-599-8161
NSN 5960-01-431-4291
NSN 5998-01-526-4636
NSN 6240-01-163-0086
NSN 5999-01-294-4489
NSN 5855-01-037-7342