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 7035-00-756-4374
NSN 5930-01-495-1669
NSN 6220-01-510-9372
NSN 5999-01-168-2061
NSN 5905-00-136-1916
NSN 6220-01-651-3842
NSN 5910-01-394-7275
NSN 5960-00-438-9568
NSN 5930-01-406-4998
NSN 5855-01-028-8387
NSN 6620-01-617-3915
NSN 5950-01-014-5589