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 5950-00-529-0264
NSN 5960-00-232-9108
NSN 6240-01-348-0057
NSN 5930-01-340-1285
NSN 5999-00-248-3227
NSN 5945-01-237-2388
NSN 6105-01-447-2984
NSN 5945-01-516-5452
NSN 5895-01-104-4410
NSN 6620-00-993-9564
NSN 6130-01-155-3137
NSN 5996-00-422-3328