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 5985-01-066-9012
NSN 6240-00-193-0656
NSN 2925-00-909-2596
NSN 6110-00-614-9218
NSN 5835-00-482-0924
NSN 5910-00-679-5924
NSN 5925-01-381-7828
NSN 5915-00-926-2471
NSN 5996-01-487-6249
NSN 4140-01-281-4058
NSN 6320-01-301-4699
NSN 6650-00-264-0664