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 5925-01-024-9568
NSN 5915-00-091-5242
NSN 5905-00-828-5431
NSN 6685-00-571-6880
NSN 7035-00-553-6951
NSN 5999-01-077-1529
NSN 5930-00-772-6628
NSN 6320-00-313-9114
NSN 5998-01-503-0665
NSN 5935-01-654-7692
NSN 6320-00-483-0451
NSN 5855-01-461-7726