The Ammeter, cataloged under National Stock Number 6625-01-255-9074, 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 Yokogawa Corporation of America. Government technical data includes 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-01-255-9074 |
| Primary Part Number | 251-425ECVA |
| Item Name | Ammeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Yokogawa Corporation of America |
| Status | ACTIVE |
| Circuit Construction Type | NONELECTRONIC |
| Meter Body Diameter Behind Mounting Flange | 2.625 INCHES NOMINAL IN |
| Indicator Type | DIAL W/POINTER |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Meter Depth Behind Mounting Flange | 1.125 INCHES NOMINAL IN |
| Circuit Current for Which Designed | DC |
| Accuracy in Percent | -1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Panel for Which Designed | NONMAGNETIC |
| Style Designator | RECTANGULAR FLUSH MTG |
| Scale Division Quantity | 10 SINGLE INDICATOR SINGLE RANGE |
| 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 1.0 KILOAMPERES, DC SINGLE INDICATOR SINGLE RANGE |
| Nuclear Hardness Critical Feature | NONHARDENED |
| Installation Design | PANEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | JN |
| Part Number | Manufacturer |
|---|---|
| 251-425ECVA PRIMARY | Yokogawa Corporation of America (USA) |
| 136402438 PRIMARY | Eaton Corporation (USA) |
| Reference | Meaning |
|---|---|
| 50-251-425ECVA | 5/9 Secondary reference General Electric Co Instrument Products Section |
| 136402438 | 5/9 Secondary reference General Electric Co Instrument Products Section |
| 5136402438 | C/1 Advisory reference — outside the item-of-supply concept Eaton Corporation |
NSN 6625-01-255-9074 is a Ammeter, manufactured by Yokogawa Corporation of America, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-255-9074 has 2 manufacturer part numbers on file: 251-425ECVA (Yokogawa Corporation of America), 136402438 (Eaton Corporation).
Key specifications for 251-425ECVA: Circuit Construction Type: NONELECTRONIC; Meter Body Diameter Behind Mounting Flange: 2.625 INCHES NOMINAL IN; Overall Height: 4.000 INCHES NOMINAL IN; Indicator Type: DIAL W/POINTER. 16 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.
NSN 6625-01-255-9074 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.