Part Details | ELECTRICAL FREQUENCY METER
6625-00-789-1247 An instrument which measures the rate of regularly recurring variations in an electric current or voltage and is usually calibrated in Hertz (cycles per second or CPS). The value may be expressed by means of a pointer and calibrated dial vibrating reed or a digital read out display. For instruments which measure radio frequencies, see CALIBRATOR, FREQUENCY; and WAVEMENTER. Excludes: COUNTER ELECTRONIC DIGITAL.
Alternate Parts: 65081, 6508-1, 41005498, 410-05498, 6625-00-789-1247, 00-789-1247, 6625007891247, 007891247
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1962 | 00-789-1247 | 16454 ( METER, ELECTRICAL FREQUENCY ) |
REFERENCE DRAWINGS & PICTURES
THREE HOLE/STUD BOLT CIRCLE
ROUND FLUSH MTG
Cross Reference | NSN 6625-00-789-1247
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 6508-1 | 27777 | L3 TECHNOLOGIES, INC.DBA INSIGHT TECHNOLOGY DIVISION |
| 410-05498 | 77221 | PHAOSTRON INSTRUMENT AND ELECTRONICCOMPANY |
Technical Data | NSN 6625-00-789-1247
| Characteristic | Specifications |
|---|---|
| INSTALLATION DESIGN | PANEL |
| INDICATOR TYPE | DIAL W/POINTER |
| MOVEMENT TYPE | MOVING COIL, PERMANENT MAGNET |
| MOVEMENT SUSPENSION METHOD | JEWEL PIVOT BASE |
| FREQUENCY RESPONSE RANGE | +340.000 TO +440.000 HERTZ |
| CIRCUIT ATTACHMENT METHOD AND QUANTITY | 2 WIRE LEAD |
| SCALE SELECTION METHOD | TERMINAL |
| DIELECTRIC WITHSTANDING VOLTAGE IN VOLTS | 3000.0 |
| POWER SOURCE | EXTERNAL |
| CIRCUIT CURRENT FOR WHICH DESIGNED | AC |
| OPERATING VOLTAGE RATING IN VOLTS | 440.0 AC NOMINAL |
| FREQUENCY RATING | 390.0 HERTZ NOMINAL |
| STYLE DESIGNATOR | ROUND FLUSH MTG |
| METER BODY DIAMETER BEHIND MOUNTING FLANGE | 3.600 INCHES MAXIMUM |
| METER DEPTH BEHIND MOUNTING FLANGE | 1.400 INCHES MAXIMUM |
| OVERALL LENGTH | 2.150 INCHES MAXIMUM |
| MOUNTING FACILITY TYPE AND QUANTITY | 3 SCREW AND 3 UNTHREADED HOLE |
| MOUNTING HOLE DIAMETER | 0.200 INCHES NOMINAL |
| MOUNTING ARRANGEMENT STYLE | THREE HOLE/STUD BOLT CIRCLE |
| MOUNTING BOLT CIRCLE DIAMETER | 4.124 INCHES MAXIMUM |
| MATERIAL | PLASTIC |
| SURFACE TREATMENT | PAINT |
| NUCLEAR HARDNESS CRITICAL FEATURE | |
| FURNISHED ITEMS AND QUANTITY | NUT 3; LOCKWASHER 3; SEAL 1 |
| SPECIAL MARKINGS | ON BACK,SEALED DO NOT OPEN |
| FEATURES PROVIDED | MAGNETIC SHIELD AND ZERO ADJUSTER |
| SPECIAL FEATURES | RUGGEDIZED |
| SPECIAL TEST FEATURES | COMPLIES WITH MIL-M-10304 |
| FSC APPLICATION DATA | TEST SET,ELECT. EQUIP. |