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 5930-01-060-7268
NSN 5835-00-513-9680
NSN 5895-01-312-3309
NSN 5999-00-398-1583
NSN 6110-00-231-0776
NSN 5835-00-003-0295
NSN 5950-01-601-0046
NSN 5960-01-023-8800
NSN 5975-01-551-2152
NSN 6610-00-684-7683
NSN 5835-01-510-1873
NSN 5999-01-603-0181