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 6320-00-725-0754
NSN 5999-01-433-4721
NSN 6150-01-221-2868
NSN 5965-01-182-5768
NSN 7035-01-432-2298
NSN 5998-01-413-6335
NSN 6610-01-526-2054
NSN 6620-01-506-1003
NSN 6220-01-035-8638
NSN 7035-01-386-9551
NSN 5998-01-657-4953
NSN 5930-00-078-2719