| Class |
Group |
Description |
|
931
|
070
|
Controllers, Indicators, & Recorders,
|
|
931
|
170
|
Inclinometers, Grade; Maintenance
|
|
931
|
210
|
Indicators, Phase & Recorders;
|
|
931
|
240
|
Instruments, Altitude; Maintenance
|
|
931
|
280
|
Instruments, Conductivity; Maintenance
|
|
931
|
310
|
Instruments, Depth; Maintenance
|
|
931
|
350
|
Instruments, Frequency; Maintenance
|
|
931
|
380
|
Instruments, Gravity; Maintenance
|
|
931
|
420
|
Instruments, Humidity; Maintenance
|
|
931
|
450
|
Instruments, Illumination; Maintenance
|
|
931
|
490
|
Instruments, Photoelectric; Maintenance
|
|
931
|
550
|
Instruments, Radar; Maintenance Service
|
|
931
|
580
|
Instruments, Sonar; Maintenance Service
|
|
931
|
650
|
Instruments, Vacuum; Maintenance
|
|
931
|
690
|
Instruments, Velocity; Maintenance
|
|
931
|
720
|
Instruments, Vibration; Maintenance
|
|
931
|
760
|
Instruments, Weather & Wind; Maintenance
|
|
931
|
790
|
Oscillographs; Maintenance Service
|
|
931
|
860
|
Strain Gauges & Instruments; Maintenance
|
|
931
|
900
|
Stroboscopes (Except Automotive);
|
|
931
|
930
|
Tachometers (Except Automotive);
|
