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 6610-01-022-2474
NSN 5999-00-016-4526
NSN 5950-00-182-8204
NSN 5960-00-952-6705
NSN 6220-00-950-7477
NSN 5895-01-386-4478
NSN 6320-00-174-1362
NSN 6150-01-322-9901
NSN 6610-01-286-3079
NSN 6145-01-651-0803
NSN 6110-00-561-9162
NSN 4140-00-285-6042