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 5975-00-488-3937
NSN 6620-00-555-3992
NSN 5990-01-378-7349
NSN 5996-01-235-1643
NSN 6105-01-423-7008
NSN 5835-01-492-3143
NSN 5990-01-303-6110
NSN 5999-01-393-0139
NSN 5920-01-138-1764
NSN 5935-00-715-1147
NSN 6220-01-485-2381
NSN 5915-01-089-7930