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 7035-00-703-3535
NSN 6105-00-865-2174
NSN 6650-01-471-0574
NSN 5920-01-275-2260
NSN 5835-01-325-5677
NSN 6320-00-593-0379
NSN 6610-01-085-1364
NSN 5895-00-726-1826
NSN 5975-00-125-2347
NSN 6320-01-294-2500
NSN 5990-01-236-8399
NSN 5895-01-055-6235