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 6105-01-480-8567
NSN 4140-01-366-4034
NSN 4140-01-607-5998
NSN 5920-01-422-1866
NSN 5935-01-255-2283
NSN 6110-01-384-0570
NSN 5975-01-236-0101
NSN 5996-01-413-1413
NSN 5965-01-430-4654
NSN 6610-00-966-5740
NSN 5999-01-430-9558
NSN 6645-00-736-0476