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 6240-00-563-5846
NSN 5855-01-047-3231
NSN 6150-00-389-6771
NSN 5996-01-451-5715
NSN 5945-01-065-0887
NSN 5935-00-549-7668
NSN 5975-01-199-9382
NSN 5945-01-509-5115
NSN 6130-00-309-2388
NSN 5990-01-247-8277
NSN 6135-00-235-1938
NSN 5960-01-599-9821