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 6220-01-528-8994
NSN 5950-00-794-0432
NSN 5855-00-281-3843
NSN 5945-01-421-1785
NSN 5930-01-369-7342
NSN 6620-01-345-1336
NSN 6130-00-165-5748
NSN 5985-01-413-4905
NSN 5935-01-069-2213
NSN 5998-01-376-2227
NSN 5965-00-857-6622
NSN 6145-01-365-1854