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 5905-01-449-1234
NSN 5996-01-582-6652
NSN 5895-00-111-1560
NSN 5895-00-294-6888
NSN 6650-01-632-9153
NSN 5985-01-012-2025
NSN 6610-01-010-0276
NSN 6610-00-144-7036
NSN 5945-01-384-1879
NSN 4140-00-187-6086
NSN 5855-01-040-3881
NSN 5895-00-518-1593