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 6620-01-416-9882
NSN 6105-00-318-9250
NSN 5910-01-554-8441
NSN 6145-00-943-9549
NSN 5960-00-929-1276
NSN 6145-01-346-3931
NSN 6150-01-634-0235
NSN 6320-01-512-2031
NSN 5960-00-172-7889
NSN 5990-01-123-4226
NSN 5965-01-425-1086
NSN 6610-01-533-7458