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 6645-00-461-6033
NSN 5999-00-233-4382
NSN 6610-01-649-4504
NSN 5965-01-231-5047
NSN 6240-01-307-8236
NSN 5945-00-727-0931
NSN 5915-01-334-1216
NSN 6610-00-180-9062
NSN 6145-01-479-5578
NSN 5835-00-435-6638
NSN 6320-01-574-1915
NSN 5945-00-869-2782