The Wattmeter, cataloged under National Stock Number 6625-00-003-0975, 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 Phaostron Instrument and Electronic Company. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 11 items share a part number with this NSN in the catalog (possible match — not a government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 | 6625-00-003-0975 |
| Primary Part Number | 631-16755 |
| Item Name | Wattmeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Phaostron Instrument and Electronic Company |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) |
| Meter Body Diameter Behind Mounting Flange | 2.800 INCHES NOMINAL IN |
| Indicator Type | DIAL W/POINTER |
| Circuit Attachment Method and Quantity | 2 SCREW |
| Meter Depth Behind Mounting Flange | 1.660 INCHES NOMINAL IN |
| Circuit Current for Which Designed | AC |
| Accuracy in Percent | -2.000 TO 2.000 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Overall Diameter | 3.510 INCHES NOMINAL IN |
| Criticality Code Justification | FEAT |
| Style Designator | ROUND FLUSH MTG |
| Mounting Hole Diameter | 0.143 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN |
| Scale Division Quantity | 14 SINGLE INDICATOR SINGLE RANGE |
| Color | UNABLE TO DECODE |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Scale Graduation Type | LINEAR SINGLE INDICATOR SINGLE RANGE |
| Measurement Range | +0.0 TO 133.0 OHMS SINGLE INDICATOR SINGLE RANGE |
| 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 | Y |
| Unit of Issue | EA |
| Acquisition advice code | DZ |
| Weight | 0.5000 lbs |
| Cube | 0.0425 cu ft |
| Part Number | Manufacturer |
|---|---|
| 70-4012 | Department of Defense Project Manager-Mobile Electric Power (USA) |
| 36.1783 | Ideal Precision Meter Co Dba Ideal Precision Meter Co (USA) |
| 631-16755 PRIMARY | Phaostron Instrument and Electronic Company (USA) |
| 300-15 PRIMARY | Jewell Instruments Llc (USA) |
| Reference | Meaning |
|---|---|
| 6625000030975 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 260935 | 5/9 Secondary reference Solartron Electronics Inc Weston Instruments Div |
| 30554-70-4012 | C/1 Advisory reference — outside the item-of-supply concept Libby Power Systems, Llc |
| 04306-3000 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 6625-00-003-0975 is a Wattmeter, manufactured by Phaostron Instrument and Electronic Company, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-00-003-0975 has 4 manufacturer part numbers on file: 70-4012 (Department of Defense Project Manager-Mobile Electric Power), 36.1783 (Ideal Precision Meter Co Dba Ideal Precision Meter Co), 631-16755 (Phaostron Instrument and Electronic Company), 300-15 (Jewell Instruments Llc).
11 possible matches (shared part number, not a government interchangeability claim): 3825-00-024-2761, 5910-00-106-6699, 5895-00-373-2743. Verify interchangeability with system specifications before substitution.
Key specifications for 631-16755: Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Meter Body Diameter Behind Mounting Flange: 2.800 INCHES NOMINAL IN; Indicator Type: DIAL W/POINTER; Circuit Attachment Method and Quantity: 2 SCREW. 18 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.