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 6105-01-514-7310
NSN 6105-01-044-5907
NSN 6320-01-316-0615
NSN 6135-00-100-0485
NSN 5855-01-330-3669
NSN 6150-01-448-1432
NSN 4140-01-357-5135
NSN 6610-01-534-6377
NSN 5985-01-610-5328
NSN 6240-01-400-1311
NSN 7035-01-138-5781
NSN 5999-00-639-3447