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 6105-01-432-2249
NSN 6105-00-553-6310
NSN 5945-00-655-4444
NSN 5855-01-268-6468
NSN 5920-00-054-0172
NSN 5915-01-415-3100
NSN 4140-01-424-5216
NSN 5855-01-357-7907
NSN 5935-01-227-2370
NSN 5985-00-524-1422
NSN 5930-01-323-6505
NSN 5998-00-780-9332