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 6150-00-288-6245
NSN 5998-01-492-7061
NSN 6685-00-201-4344
NSN 5935-01-020-6654
NSN 5999-01-130-8911
NSN 5998-00-063-9419
NSN 6645-01-425-2330
NSN 5920-01-219-0724
NSN 6240-01-400-3603
NSN 5835-01-424-4577
NSN 5950-00-978-7729
NSN 7035-01-465-9156