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 6150-01-608-3033
NSN 5895-01-271-8470
NSN 6220-00-670-1790
NSN 6145-01-350-0976
NSN 6240-00-491-7191
NSN 5855-00-436-3852
NSN 5960-00-814-2154
NSN 6130-01-022-4884
NSN 7035-00-803-3056
NSN 6220-01-502-6568
NSN 5998-01-317-2361
NSN 6110-00-284-1161