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 5998-01-188-7555
NSN 6150-01-457-2010
NSN 6220-00-908-1232
NSN 5999-01-205-6331
NSN 6150-01-168-7524
NSN 5950-01-604-9435
NSN 5895-01-329-6881
NSN 5996-01-180-5834
NSN 6220-01-314-5896
NSN 6105-01-088-8133
NSN 5985-00-758-2056
NSN 6145-00-197-2824