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 6240-01-420-2364
NSN 5985-00-655-1934
NSN 6240-00-614-9679
NSN 5915-01-099-0026
NSN 6610-00-865-3848
NSN 6110-00-643-1243
NSN 6240-00-785-8398
NSN 6320-01-380-7372
NSN 6130-00-639-0666
NSN 5950-00-902-7751
NSN 5915-01-608-0914
NSN 6240-01-495-0597