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 6110-01-228-8384
NSN 6240-01-023-2013
NSN 5950-00-639-9675
NSN 5999-00-189-8191
NSN 6135-01-534-3007
NSN 6240-01-070-6028
NSN 6320-01-449-1014
NSN 5965-00-434-7617
NSN 5895-00-203-2379
NSN 5965-01-418-7226
NSN 5985-01-451-7424
NSN 5925-01-098-7829