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 6110-01-361-8949
NSN 5895-01-116-4632
NSN 5975-01-206-2736
NSN 5930-01-414-2620
NSN 4140-01-517-3179
NSN 6240-01-459-4709
NSN 6135-00-485-7402
NSN 5915-00-203-2859
NSN 5895-01-550-5062
NSN 6610-01-521-4974
NSN 6145-01-519-8210
NSN 6110-01-224-4475