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 5996-00-021-0924
NSN 6130-00-762-7404
NSN 5835-00-454-7239
NSN 5930-00-196-6817
NSN 6150-01-004-0030
NSN 5975-00-563-0346
NSN 6130-00-975-7629
NSN 6220-01-398-1087
NSN 6320-01-547-2743
NSN 6320-01-204-2922
NSN 5998-01-483-1044
NSN 5935-01-467-2660