| Naics index | Naics index description |
|---|---|
| 334519 | Actinometers, meteorological, manufacturing |
| 334519 | Aircraft engine instruments manufacturing |
| 334519 | Alarm clocks manufacturing |
| 334519 | Alidades, surveying, manufacturing |
| 334519 | Appliance timers manufacturing |
| 334519 | Automotive emissions testing equipment manufacturing |
| 334519 | Barographs manufacturing |
| 334519 | Barometers manufacturing |
| 334519 | Breath alcohol testing devices manufacturing |
| 334519 | Breathalyzers manufacturing |