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 6320-01-476-0686
NSN 6320-00-116-3658
NSN 5945-00-627-1231
NSN 6130-01-421-4538
NSN 5925-01-381-2528
NSN 6620-01-371-1655
NSN 5910-00-682-6243
NSN 6130-01-568-7020
NSN 6130-00-118-2696
NSN 5975-01-322-4886
NSN 6135-01-614-8028
NSN 5950-01-625-9805