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 5998-00-891-8649
NSN 5960-01-465-6847
NSN 6105-01-217-1535
NSN 6320-01-039-5891
NSN 6145-00-963-3944
NSN 6650-01-257-7237
NSN 6135-01-340-9731
NSN 5960-00-963-1285
NSN 6240-01-355-0043
NSN 5835-00-936-8753
NSN 6150-01-647-4923
NSN 5999-01-287-8556