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 5930-00-563-7944
NSN 6150-01-206-4944
NSN 5835-01-104-1299
NSN 5996-01-628-1695
NSN 5965-01-253-5353
NSN 5999-01-479-0443
NSN 6610-00-149-1534
NSN 5945-01-065-6295
NSN 6685-00-430-0708
NSN 6105-01-492-3455
NSN 5965-01-651-0791
NSN 5960-01-515-4791