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 5960-01-317-3401
NSN 5855-01-406-9451
NSN 5915-01-057-8892
NSN 5999-01-555-8285
NSN 6240-01-320-1308
NSN 5965-01-651-0791
NSN 5855-00-310-2526
NSN 5950-01-548-9351
NSN 6110-00-901-0861
NSN 5905-00-686-4108
NSN 6130-00-838-0384
NSN 6110-01-442-4144