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 6320-01-388-1067
NSN 5835-01-297-1909
NSN 6130-00-220-5791
NSN 5950-00-959-6938
NSN 6240-01-571-7706
NSN 6145-01-614-6065
NSN 6135-01-586-1969
NSN 6220-00-423-6878
NSN 5950-01-233-1161
NSN 5965-01-633-8849
NSN 6150-00-752-5060
NSN 6110-01-092-4730