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 6135-00-078-9931
NSN 6240-00-698-5822
NSN 5905-01-483-3428
NSN 5996-01-509-1536
NSN 6145-01-194-6505
NSN 5990-00-436-2224
NSN 6150-01-147-8526
NSN 5935-01-401-5324
NSN 6130-01-475-2902
NSN 5835-00-322-5654
NSN 6110-00-712-2981
NSN 5930-01-612-9542