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 6620-01-023-9330
NSN 5930-01-052-3978
NSN 6135-00-816-9052
NSN 6610-00-727-9918
NSN 5965-01-112-7229
NSN 6105-00-763-7967
NSN 7035-00-096-9986
NSN 5996-01-188-3831
NSN 6240-00-299-3986
NSN 5945-00-729-8418
NSN 6610-00-159-1110
NSN 6110-01-096-2271