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 5935-00-678-0115
NSN 5895-01-246-2949
NSN 6685-01-295-0783
NSN 4140-00-273-1199
NSN 6105-01-634-0322
NSN 6130-01-069-1784
NSN 6320-01-532-6746
NSN 6145-01-432-2440
NSN 5996-00-959-4892
NSN 5915-01-655-1413
NSN 5998-01-411-5141
NSN 6130-01-107-5076