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 7035-00-803-3056
NSN 5998-01-370-8670
NSN 6685-00-407-1028
NSN 5975-01-029-4176
NSN 5990-01-121-1175
NSN 2925-00-185-1618
NSN 5920-00-450-1978
NSN 6145-01-359-2378
NSN 5930-01-119-4205
NSN 5950-00-756-9631
NSN 4140-00-007-9639
NSN 5999-01-009-6154