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 5960-01-191-6249
NSN 5965-01-451-7313
NSN 5998-01-367-6477
NSN 5999-01-334-2976
NSN 5895-00-157-8232
NSN 7035-01-428-2336
NSN 6320-00-456-0836
NSN 5998-01-634-0604
NSN 5835-01-459-8664
NSN 6130-00-261-4942
NSN 5996-00-389-7404
NSN 5950-01-116-5641