The Ammeter, cataloged under National Stock Number 6625-01-040-7658, 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 27 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6625-01-040-7658 |
| Primary Part Number | 185112EMEM |
| 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 |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) |
| FSC Application Data | ELEC,ELECT. PROPERTIES MEASURING AND TEST INSTRUMENTS |
| Indicator Type | DIAL W/POINTER |
| Mounting Arrangement Style | TWO HOLE/STUD |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Meter Depth Behind Mounting Flange | 1.538 INCHES NOMINAL IN |
| Circuit Current for Which Designed | DC |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Meter Body Height Behind Mounting Flange | 0.917 INCHES NOMINAL IN |
| Panel for Which Designed | MAGNETIC OR NONMAGNETIC |
| Style Designator | RECTANGULAR FLUSH MTG |
| Mounting Hole Diameter | 0.166 INCHES NOMINAL IN |
| Features Provided | MAGNETIC SHIELD AND ZERO ADJUSTER |
| Distance Between Mounting Facility Centers | 2.686 INCHES NOMINAL IN |
| Scale Division Quantity | 50 SINGLE INDICATOR SINGLE RANGE |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Meter Body Width Behind Mounting Flange | 2.258 INCHES NOMINAL IN |
| Color | UNABLE TO DECODE |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Material | PLASTIC |
| Sensitivity Rating | 34.0 OHMS |
| Scale Graduation Type | LINEAR SINGLE INDICATOR SINGLE RANGE |
| Measurement Range | -500.0 TO 500.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE |
| Nuclear Hardness Critical Feature | NONHARDENED |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| 185112EMEM PRIMARY | Yokogawa Corporation of America (USA) |
| Reference | Meaning |
|---|---|
| 50-185 112 EMEM | 5/9 Secondary reference General Electric Co Meter Business Dept |
NSN 6625-01-040-7658 is a Ammeter, manufactured by Yokogawa Corporation of America, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-040-7658 has 1 manufacturer part number on file: 185112EMEM (Yokogawa Corporation of America).
Key specifications for 185112EMEM: Circuit Construction Type: NONELECTRONIC; Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S); Overall Height: 3.000 INCHES NOMINAL IN; FSC Application Data: ELEC,ELECT. PROPERTIES MEASURING AND TEST INSTRUMENTS. 27 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.