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 6130-00-387-2051
NSN 5930-00-892-1668
NSN 5915-01-167-8506
NSN 6130-00-156-3871
NSN 5985-01-049-1998
NSN 5998-01-327-3666
NSN 6150-01-513-5405
NSN 5950-01-370-5374
NSN 6685-00-343-8230
NSN 6610-00-227-8846
NSN 6320-00-116-3658
NSN 5996-01-268-1625