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 5895-00-104-5982
NSN 6150-01-090-0982
NSN 5905-01-023-1381
NSN 6620-01-352-5640
NSN 5999-01-449-1124
NSN 6620-01-090-3803
NSN 5935-00-919-9378
NSN 6685-01-013-2057
NSN 4140-01-563-3500
NSN 5930-01-540-7993
NSN 6320-01-102-0799
NSN 5930-01-571-1994