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 5855-01-070-8084
NSN 6110-00-568-1431
NSN 5960-01-024-7918
NSN 6610-01-327-3187
NSN 5905-01-325-7996
NSN 6320-00-593-0379
NSN 6620-01-091-8413
NSN 6650-00-809-1817
NSN 4140-00-394-5744
NSN 6150-01-630-4650
NSN 5965-00-729-6835
NSN 6130-01-080-8856