Part Details | ELECTRICAL FREQUENCY METER
6625-00-878-7561 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: 1662500, 166-2500, 1662500, 166-2500, 1662500, 166-2500, 29008453, 290-08453, 6625-00-878-7561, 00-878-7561, 6625008787561, 008787561
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1962 | 00-878-7561 | 16454 ( METER, ELECTRICAL FREQUENCY ) |
REFERENCE DRAWINGS & PICTURES
THREE HOLE/STUD BOLT CIRCLE
ROUND FLUSH MTG
Cross Reference | NSN 6625-00-878-7561
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 166-2500 | 09062 | CRANE ELECTRONICS, INC. |
| 166-2500 | 28304 | CUSTOM METERING COMPANY INC |
| 166-2500 | 57639 | METERMASTER INCMISCORP DIV |
| 290-08453 | 77221 | PHAOSTRON INSTRUMENT AND ELECTRONICCOMPANY |
Technical Data | NSN 6625-00-878-7561
| Characteristic | Specifications |
|---|---|
| INSTALLATION DESIGN | PANEL |
| INDICATOR TYPE | VIBRATING REED |
| MOVEMENT TYPE | VIBRATING REED |
| REGISTER QUANTITY | 1 |
| RESONANT REED QUANTITY | 8 |
| FREQUENCY RESPONSE RANGE | +380.000 TO +420.000 HERTZ |
| CIRCUIT ATTACHMENT METHOD AND QUANTITY | 2 THREADED STUD |
| SCALE SELECTION METHOD | TERMINAL |
| POWER SOURCE | EXTERNAL |
| CIRCUIT CURRENT FOR WHICH DESIGNED | AC |
| STYLE DESIGNATOR | ROUND FLUSH MTG |
| METER BODY DIAMETER BEHIND MOUNTING FLANGE | 2.210 INCHES MAXIMUM |
| METER DEPTH BEHIND MOUNTING FLANGE | 1.660 INCHES MAXIMUM |
| OVERALL DIAMETER | 2.695 INCHES MAXIMUM |
| OVERALL LENGTH | 2.650 INCHES MAXIMUM |
| MOUNTING FACILITY TYPE AND QUANTITY | 3 SCREW AND 3 UNTHREADED HOLE |
| MOUNTING HOLE DIAMETER | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM |
| MOUNTING ARRANGEMENT STYLE | THREE HOLE/STUD BOLT CIRCLE |
| MOUNTING BOLT CIRCLE DIAMETER | 2.440 INCHES NOMINAL |
| NUCLEAR HARDNESS CRITICAL FEATURE | |
| ENVIRONMENTAL PROTECTION | HERMETIC |
| FURNISHED ITEMS AND QUANTITY | NUT 4; WASHER 3 |