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 5950-01-107-3434
NSN 6105-01-304-8172
NSN 5895-01-259-5266
NSN 5910-01-068-3381
NSN 5905-01-641-5363
NSN 5930-00-115-7972
NSN 5920-01-097-5725
NSN 5945-01-591-7036
NSN 6105-01-462-3628
NSN 5855-00-004-0904
NSN 6110-00-165-3848
NSN 5975-00-891-7298