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 7035-01-021-1413
NSN 6650-01-412-8471
NSN 6650-00-237-9985
NSN 5855-01-387-8827
NSN 6145-01-526-1651
NSN 6130-01-580-7818
NSN 6320-01-422-1212
NSN 5996-01-547-6638
NSN 6145-01-207-7762
NSN 5920-01-499-4236
NSN 5985-00-149-1675
NSN 6150-00-617-1989