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 6135-01-429-9029
NSN 5915-01-135-9847
NSN 6135-01-210-8715
NSN 6105-00-246-7116
NSN 5965-00-188-5531
NSN 5945-00-192-0245
NSN 5950-00-401-6695
NSN 5935-01-246-5791
NSN 6150-00-009-0833
NSN 5998-01-360-7664
NSN 6620-01-364-0195
NSN 6150-01-253-7633