| Subgroup Name | Actions |
|---|---|
| Navigational Instruments | |
| Flight Instruments | |
| Automatic Pilot Mechanisms And Airborne Gyro Components | |
| Engine Instruments | |
| Electrical And Electronic Properties Measuring And Testing Instruments | |
| Chemical Analysis Instruments | |
| Medical Laboratory Analysis Instruments | |
| Physical Properties Testing And Inspection | |
| Environmental Chambers And Related Equipment | |
| Laboratory Equipment And Supplies | |
| Time Measuring Instruments | |
| Optical Instruments, Test Equipment, Components And Accessories | |
| Geophysical Instruments | |
| Meteorological Instruments And Apparatus | |
| Hazard Detecting Instruments And Apparatus | |
| Scales And Balances | |
| Drafting, Surveying, And Mapping Instruments | |
| Liquid And Gas Flow, Liquid Level, And Mechanical Motion Measuring Instruments | |
| Pressure, Temperature, And Humidity Measuring And Controlling Instruments | |
| Combination And Miscellaneous Instruments |
