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 6105-00-401-5379
NSN 6135-01-379-6928
NSN 6110-01-290-1576
NSN 6150-01-056-5288
NSN 5985-01-355-8177
NSN 5925-01-084-0058
NSN 5960-00-338-9164
NSN 5910-01-273-4116
NSN 6240-00-474-5809
NSN 5930-00-948-8275
NSN 5930-01-462-0364
NSN 6130-00-238-9135