| SPECIAL FEATURES | TERMINAL NO. 1/4-28 THD 0.500 IN. LG |
| FSC APPLICATION DATA | TEST SET,ELECT. EQUIP. |
| INSTALLATION DESIGN | PANEL |
| INDICATOR TYPE | DIAL W/POINTER |
| MEASUREMENT RANGE | 388.0 TO 412.0 HERTZ SINGLE INDICATOR SINGLE RANGE |
| ACCURACY IN PERCENT | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| SCALE GRADUATION TYPE | LINEAR SINGLE INDICATOR SINGLE RANGE |
| SCALE DIVISION QUANTITY | 48 SINGLE INDICATOR SINGLE RANGE |
| POINTER COLOR | BLACK SINGLE INDICATOR SINGLE RANGE |
| DIAL SCALE MARKING COLOR | BLACK SINGLE INDICATOR SINGLE RANGE |
| BACKGROUND COLOR | WHITE SINGLE INDICATOR SINGLE RANGE |
| MOVEMENT TYPE | MOVING COIL, PERMANENT MAGNET |
| MOVEMENT SUSPENSION METHOD | JEWEL PIVOT BASE |
| FREQUENCY RESPONSE RANGE | 388.000 TO 412.000 HERTZ |
| CIRCUIT ATTACHMENT METHOD AND QUANTITY | 2 THREADED STUD |
| SCALE SELECTION METHOD | TERMINAL |
| POWER SOURCE | EXTERNAL |
| CIRCUIT CURRENT FOR WHICH DESIGNED | DC |
| STYLE DESIGNATOR | ROUND FLUSH MTG |
| METER BODY DIAMETER BEHIND MOUNTING FLANGE | 2.800 INCHES NOMINAL |
| METER DEPTH BEHIND MOUNTING FLANGE | 1.660 INCHES NOMINAL |
| OVERALL DIAMETER | 3.510 INCHES NOMINAL |
| OVERALL LENGTH | 2.060 INCHES NOMINAL |
| MOUNTING FACILITY TYPE AND QUANTITY | 3 FLANGE |
| MOUNTING STUD LENGTH | 0.375 INCHES MINIMUM AND |
| 0.625 INCHES MAXIMUM |
| MOUNTING ARRANGEMENT STYLE | THREE HOLE/STUD BOLT CIRCLE |
| MOUNTING BOLT CIRCLE DIAMETER | 3.160 INCHES NOMINAL |
| NUCLEAR HARDNESS CRITICAL FEATURE | NONHARDENED |
| SPECIAL MARKINGS | RED LINE AT 400 HERTZ |
| FEATURES PROVIDED | MAGNETIC SHIELD AND |
| ZERO ADJUSTER |