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 6145-01-148-1213
NSN 5996-00-454-7938
NSN 5999-01-326-7565
NSN 6150-00-813-9422
NSN 5975-01-425-7513
NSN 6240-01-079-3704
NSN 5945-01-642-0692
NSN 5950-01-406-2849
NSN 5990-00-665-4105
NSN 6105-00-818-5436
NSN 6620-01-419-2992
NSN 6220-01-031-3263