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 6105-01-351-5998
NSN 5895-00-740-7461
NSN 6240-00-947-4719
NSN 5965-01-250-3214
NSN 5835-00-074-3700
NSN 6110-01-612-3507
NSN 6620-01-157-9267
NSN 6320-01-358-8069
NSN 6620-01-297-5576
NSN 5855-01-382-8725
NSN 5999-01-630-7409
NSN 6620-01-642-4218