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 6105-01-493-2518
NSN 5920-01-157-2767
NSN 5945-00-146-4177
NSN 5895-01-445-6161
NSN 6130-01-085-6095
NSN 4140-00-404-1016
NSN 5945-00-689-3643
NSN 6645-01-494-3845
NSN 5998-01-570-3994
NSN 6130-01-467-0808
NSN 6240-00-197-6819
NSN 6110-01-103-0288