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 5996-01-043-2105
NSN 6110-01-435-6610
NSN 5920-00-776-0633
NSN 6220-01-457-6344
NSN 5998-01-306-9227
NSN 4140-01-509-0009
NSN 5835-00-148-9719
NSN 5975-00-916-4923
NSN 5835-01-023-8733
NSN 6150-00-471-3212
NSN 5935-01-127-4556
NSN 5999-01-257-4586