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 6620-00-105-3312
NSN 5945-01-459-7700
NSN 6145-01-562-3451
NSN 6650-01-607-9343
NSN 5998-01-434-6034
NSN 6130-01-445-5741
NSN 5945-01-091-7276
NSN 6105-00-933-2930
NSN 5990-01-050-7535
NSN 6610-01-370-3886
NSN 6320-00-521-9350
NSN 5925-01-077-3137