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 5996-00-736-4589
NSN 5985-01-259-8056
NSN 5905-01-619-6826
NSN 5905-01-123-2388
NSN 6150-01-439-1378
NSN 5925-01-502-8783
NSN 5996-00-218-1123
NSN 6650-01-127-9518
NSN 6645-01-577-2306
NSN 6645-01-319-6683
NSN 5945-01-208-5327
NSN 5895-01-473-2066