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 6105-00-728-8612
NSN 6320-01-129-9656
NSN 5985-00-968-6381
NSN 6150-01-015-1877
NSN 5855-01-504-2646
NSN 5925-01-242-1524
NSN 4140-01-044-5118
NSN 5985-00-805-8093
NSN 6130-00-718-0860
NSN 5996-01-106-6215
NSN 6240-00-717-0844
NSN 5985-00-932-2702