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 5835-00-841-2650
NSN 6150-01-318-5159
NSN 5920-01-429-1373
NSN 5930-01-462-1945
NSN 6110-01-218-5257
NSN 5985-01-175-9466
NSN 5998-01-466-2466
NSN 6110-01-429-0008
NSN 6240-01-487-6459
NSN 6135-01-658-7467
NSN 6150-00-018-8646
NSN 6135-00-120-1034