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 5935-00-622-0125
NSN 6150-00-725-1189
NSN 5930-01-298-4362
NSN 5895-01-634-0630
NSN 5920-00-232-6419
NSN 5895-01-426-4809
NSN 6610-01-593-0135
NSN 6320-01-225-9963
NSN 6105-01-572-3525
NSN 5975-00-950-7144
NSN 6220-00-846-5735
NSN 5910-01-154-1890