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 5999-01-543-4847
NSN 6130-01-143-5952
NSN 5935-00-932-5241
NSN 5945-00-503-6551
NSN 5990-00-698-3963
NSN 5910-01-388-3559
NSN 5895-00-949-9591
NSN 5915-01-527-5355
NSN 6650-01-443-5342
NSN 5990-00-202-5127
NSN 4140-01-199-3590
NSN 6150-00-079-3042