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 6130-01-209-6893
NSN 6110-01-448-8293
NSN 5975-01-386-5974
NSN 6145-00-927-3187
NSN 5920-01-462-1593
NSN 5930-01-496-0254
NSN 6645-01-487-8227
NSN 6150-01-038-3011
NSN 5835-01-446-6065
NSN 2925-00-633-7223
NSN 7035-00-286-6221
NSN 5910-01-599-9876