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 6130-00-786-1775
NSN 5945-01-089-8771
NSN 6320-01-562-1599
NSN 4140-00-580-8508
NSN 5975-01-607-1670
NSN 5910-00-804-2197
NSN 5990-01-642-5748
NSN 5855-01-656-6808
NSN 5945-01-646-0719
NSN 6685-01-442-6195
NSN 5930-01-178-2328
NSN 5950-01-407-1594