The Meter,electrical Frequency, cataloged under National Stock Number 6625-01-313-2188, 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 Naval Sea Systems Command. Government technical data includes 28 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-01-313-2188 |
| Primary Part Number | 438-5749726 |
| Item Name | Meter,electrical Frequency |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 3 SCREW AND 3 UNTHREADED HOLE(S) |
| Meter Body Diameter Behind Mounting Flange | 2.780 INCHES MAXIMUM IN |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Indicator Type | DIAL W/POINTER |
| Mounting Arrangement Style | THREE HOLE/STUD BOLT CIRCLE |
| Circuit Attachment Method and Quantity | 2 SCREW AND 2 SOLDER LUG |
| Meter Depth Behind Mounting Flange | 1.650 INCHES MAXIMUM IN |
| Circuit Current for Which Designed | AC |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Accuracy in Percent | -1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Overall Diameter | 3.510 INCHES MAXIMUM IN |
| Dielectric Withstanding Voltage in Volts | 1000.0 |
| Power Source | EXTERNAL |
| Style Designator | ROUND FLUSH MTG |
| Mounting Hole Diameter | 0.125 INCHES NOMINAL IN |
| Features Provided | ZERO ADJUSTER |
| Scale Division Quantity | 30 SINGLE INDICATOR SINGLE RANGE |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Mounting Bolt Circle Diameter | 3.145 INCHES NOMINAL IN |
| Color | UNABLE TO DECODE |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Surface Treatment | PAINT |
| Environmental Protection | AIRTIGHT AND DUST RESISTANT AND FUNGUS RESISTANT AND HEAT RESISTANT AND HUMIDITY RESISTANT AND SHOCK RESISTANT AND VIBRATION RESISTANT AND WATER RESISTANT |
| Frequency Rating | 60.0 HERTZ NOMINAL |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Special Markings | ON BACK,SEALED DO NOT OPEN |
| Material | ALUMINUM ALLOY |
| Sensitivity Rating | 1000.0 OHMS PER VOLT |
| 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 | Z |
| Weight | 1.0362 lbs |
| Cube | 0.0450 cu ft |
| Part Number | Manufacturer |
|---|---|
| 438-5749726 PRIMARY | Naval Sea Systems Command (USA) |
| 438-5749726 | Custom Metering Company Inc (USA) |
| 3452-132 | Jewell Instruments Llc (USA) |
| Reference | Meaning |
|---|---|
| 345-132 | 5/9 Secondary reference Jewell Instruments, Llc Dba Modutec Use CAGE Code 33005 for Cataloging |
| 3452-132 | 5/9 Secondary reference Jewell Instruments, Llc Dba Modutec Use CAGE Code 33005 for Cataloging |
NSN 6625-01-313-2188 is a Meter,electrical Frequency, manufactured by Naval Sea Systems Command, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-313-2188 has 3 manufacturer part numbers on file: 438-5749726 (Naval Sea Systems Command), 438-5749726 (Custom Metering Company Inc), 3452-132 (Jewell Instruments Llc).
1 possible match (shared part number, not a government interchangeability claim): 6240-01-466-8719. Verify interchangeability with system specifications before substitution.
Key specifications for 438-5749726: Mounting Facility Type and Quantity: 3 SCREW AND 3 UNTHREADED HOLE(S); Meter Body Diameter Behind Mounting Flange: 2.780 INCHES MAXIMUM IN; FSC Application Data: TEST SET,ELECT. EQUIP.; Indicator Type: DIAL W/POINTER. 28 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.