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 5945-01-574-5895
NSN 4140-01-074-6262
NSN 6620-01-287-9975
NSN 5905-01-415-2902
NSN 5910-00-919-8502
NSN 6130-01-194-5991
NSN 6320-01-090-8296
NSN 5996-01-282-2931
NSN 5935-01-193-6753
NSN 6150-01-506-0355
NSN 4140-00-307-2732
NSN 6240-01-257-9004