| Naics index | Naics index description |
|---|---|
| 339991 | Coaxial mechanical face seals manufacturing |
| 339991 | Compression packings manufacturing |
| 339991 | Gasket, packing, and sealing devices manufacturing |
| 339991 | Gaskets manufacturing |
| 339991 | Grease seals manufacturing |
| 339991 | Molded packings and seals manufacturing |
| 339991 | Oil seals manufacturing |
| 339991 | Seals, grease or oil, manufacturing |
| 339992 | Accordions and parts manufacturing |
| 339992 | Autophones (organs with perforated music rolls) manufacturing |