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 5895-01-172-4708
NSN 5835-01-521-4979
NSN 5920-00-710-8434
NSN 5935-00-036-8653
NSN 5998-01-119-5493
NSN 5990-01-443-2931
NSN 5895-01-095-8272
NSN 4140-00-401-3123
NSN 5985-01-359-2605
NSN 5965-01-181-7831
NSN 6220-01-222-9554
NSN 5895-00-078-7614