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 5975-01-597-9848
NSN 6240-00-945-7623
NSN 5945-00-596-2665
NSN 5920-00-276-8657
NSN 6105-01-464-3777
NSN 6105-00-800-9859
NSN 5935-01-270-8009
NSN 7035-01-614-6650
NSN 4140-01-058-1968
NSN 5855-01-165-6361
NSN 5996-00-213-7121
NSN 5999-00-299-1207