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 6685-00-593-4574
NSN 6110-01-181-7878
NSN 6685-01-379-0332
NSN 5950-01-423-1742
NSN 5999-01-056-6862
NSN 5998-01-607-5757
NSN 6145-00-984-4139
NSN 5930-01-630-4679
NSN 6220-01-535-2260
NSN 6240-01-459-7827
NSN 5950-01-593-4566
NSN 6105-01-194-5999