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 5945-01-322-5935
NSN 6135-01-475-7415
NSN 5910-01-527-1232
NSN 5998-01-310-3844
NSN 5985-01-318-3887
NSN 7035-00-252-7467
NSN 6610-01-425-1523
NSN 6610-01-406-4985
NSN 7035-00-915-5798
NSN 6650-01-294-5243
NSN 5915-01-582-1690
NSN 5945-00-537-0934