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 6135-00-825-6692
NSN 6650-01-612-1832
NSN 5985-00-231-2810
NSN 5945-00-280-1567
NSN 5835-00-847-7277
NSN 5945-00-010-5544
NSN 5945-00-769-9625
NSN 5945-00-520-6043
NSN 5930-00-484-1405
NSN 5950-00-946-9153
NSN 5996-01-512-2030
NSN 2925-00-073-9375