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 6105-01-575-1256
NSN 5945-01-311-3608
NSN 6135-01-100-3593
NSN 5915-00-831-6143
NSN 4140-01-161-8955
NSN 5935-01-034-8104
NSN 5996-01-129-2949
NSN 4140-00-941-4098
NSN 5996-01-573-3119
NSN 6110-01-583-8032
NSN 5998-01-296-9560
NSN 6240-01-072-8293