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 6240-01-459-4709
NSN 6105-00-314-7767
NSN 5999-01-413-5242
NSN 5950-01-540-2224
NSN 5975-01-576-5356
NSN 5935-01-363-0285
NSN 5950-01-434-2514
NSN 6645-01-177-6021
NSN 6610-00-872-7600
NSN 6645-00-145-6411
NSN 5999-01-185-4224
NSN 5920-00-126-1873