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 5915-01-495-3675
NSN 5910-01-633-9963
NSN 5915-01-449-0114
NSN 6150-01-138-7852
NSN 5920-00-242-2758
NSN 5960-00-721-1744
NSN 6220-01-577-0328
NSN 5960-01-460-5516
NSN 5999-01-477-4267
NSN 6220-01-094-1207
NSN 5950-01-487-4948
NSN 5990-00-513-5328