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 5950-01-092-4320
NSN 5945-00-934-9045
NSN 5930-01-052-6907
NSN 5985-01-400-1230
NSN 6110-00-578-7243
NSN 6620-01-173-3284
NSN 5999-01-352-8861
NSN 5965-01-316-9859
NSN 5998-00-840-6834
NSN 6110-01-017-8025
NSN 5960-01-450-8539
NSN 6130-00-854-6193