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 6110-01-512-9280
NSN 5999-00-325-1185
NSN 7035-01-658-9769
NSN 6320-01-452-2394
NSN 6610-00-756-3139
NSN 2925-00-735-4979
NSN 5920-01-202-1307
NSN 6650-01-349-2403
NSN 6650-01-207-0039
NSN 5835-01-381-2683
NSN 5915-01-363-3319
NSN 6320-00-270-8222