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 6610-01-414-1755
NSN 7035-01-559-0240
NSN 5905-00-597-6081
NSN 4140-01-250-2600
NSN 6130-00-019-3032
NSN 5935-01-081-8096
NSN 5905-00-203-2182
NSN 5895-01-512-9304
NSN 5998-01-634-0604
NSN 6135-00-196-5267
NSN 6110-01-353-8849
NSN 5950-01-414-0435