The Meter,electrical Frequency, cataloged under National Stock Number 6625-01-182-1569, is classified within Federal Supply Class 6625 (Electrical and Electronic Properties Measuring and Testing Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Custom Metering Company Inc. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-01-182-1569 |
| Primary Part Number | 7909645-00 |
| Item Name | Meter,electrical Frequency |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Custom Metering Company Inc |
| Status | ACTIVE |
| Indicator Type | DIAL W/POINTER |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Circuit Current for Which Designed | AC |
| Scale Selection Method | TERMINAL |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Overall Diameter | 3.500 INCHES NOMINAL IN |
| Power Source | EXTERNAL |
| Style Designator | ROUND SURFACE MTG |
| Scale Division Quantity | 50 SINGLE INDICATOR SINGLE RANGE |
| Color | UNABLE TO DECODE |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Material | PLASTIC |
| Scale Graduation Type | LINEAR SINGLE INDICATOR SINGLE RANGE |
| Frequency Response Range | +53.900 TO 66.100 HERTZ |
| Measurement Range | +55.0 TO 65.0 HERTZ SINGLE INDICATOR SINGLE RANGE |
| Nuclear Hardness Critical Feature | NONHARDENED |
| Installation Design | PANEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | J |
| Weight | 0.8600 lbs |
| Cube | 0.0807 cu ft |
| Part Number | Manufacturer |
|---|---|
| 7909645-00 | Custom Metering Company Inc (USA) |
| ISI-12670 | Instrumentation Services Inc. Dba Isi - Instrumentation Services Inc (USA) |
| Reference | Meaning |
|---|---|
| 7909645-00 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6625-01-182-1569 is a Meter,electrical Frequency, manufactured by Custom Metering Company Inc, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-182-1569 has 2 manufacturer part numbers on file: 7909645-00 (Custom Metering Company Inc), ISI-12670 (Instrumentation Services Inc. Dba Isi - Instrumentation Services Inc).
Key specifications for 7909645-00: Indicator Type: DIAL W/POINTER; Circuit Attachment Method and Quantity: 2 THREADED STUD; Circuit Current for Which Designed: AC; Scale Selection Method: TERMINAL. 19 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.