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 5965-01-273-3055
NSN 6220-01-386-9465
NSN 5935-01-192-8220
NSN 5910-01-192-4214
NSN 5835-01-090-0784
NSN 5930-00-264-6334
NSN 5960-01-013-9346
NSN 6645-00-959-6502
NSN 6145-01-438-7322
NSN 5835-01-532-9373
NSN 6135-01-458-0631
NSN 6240-00-342-9756