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 5895-01-373-2984
NSN 6150-01-504-9521
NSN 5945-01-516-5525
NSN 6650-01-163-1849
NSN 5945-00-037-5107
NSN 5915-00-805-3666
NSN 5985-01-654-5299
NSN 5915-01-063-2713
NSN 6105-01-444-1201
NSN 6645-01-245-8390
NSN 5985-01-512-6107
NSN 6240-00-062-3642