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 5925-01-516-2823
NSN 5998-01-334-5500
NSN 6135-01-464-2075
NSN 6610-01-435-4387
NSN 5960-00-553-7338
NSN 5910-00-126-3838
NSN 6320-01-448-1189
NSN 6135-00-248-4102
NSN 6620-01-295-4390
NSN 6620-01-033-7566
NSN 6110-00-258-8542
NSN 5996-01-234-4147