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 6105-01-467-3694
NSN 5895-00-961-6329
NSN 5930-01-305-2028
NSN 6150-01-562-8624
NSN 7035-00-238-3662
NSN 6240-00-739-0961
NSN 6645-01-370-5264
NSN 5925-00-462-9164
NSN 5999-00-891-6372
NSN 5990-01-254-2936
NSN 6130-00-378-9889
NSN 5915-01-497-1353