The Ammeter, cataloged under National Stock Number 6625-00-809-0475, is classified within Federal Supply Class 6625 (Electrical and Electronic Properties Measuring and Testing Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 6625-00-809-0475 |
| Item Name | Ammeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Status | ACTIVE |
| Circuit Construction Type | NONELECTRONIC |
| Mounting Facility Type and Quantity | 3 THREADED STUD(S) |
| Meter Body Diameter Behind Mounting Flange | 2.210 INCHES NOMINAL IN |
| Indicator Type | DIAL W/POINTER |
| Mounting Arrangement Style | THREE HOLE/STUD BOLT CIRCLE |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Meter Depth Behind Mounting Flange | 1.810 INCHES NOMINAL IN |
| Circuit Current for Which Designed | DC |
| Scale Selection Method | TERMINAL |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Accuracy in Percent | -3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES |
| Overall Diameter | 2.695 INCHES NOMINAL IN |
| Mounting Stud Diameter | 0.112 INCHES NOMINAL IN |
| Panel for Which Designed | NONMAGNETIC |
| Dielectric Withstanding Voltage in Volts | 2000.0 |
| Power Source | EXTERNAL |
| Style Designator | ROUND FLUSH MTG |
| Scale Division Quantity | 30 SINGLE INDICATOR ALL RANGES |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Mounting Bolt Circle Diameter | 2.440 INCHES NOMINAL IN |
| Color | UNABLE TO DECODE |
| Pointer Color | BLACK SINGLE INDICATOR ALL RANGES |
| Environmental Protection | DUST RESISTANT |
| Mounting Stud Length | 0.500 INCHES NOMINAL IN |
| Dial Scale Marking Color | WHITE SINGLE INDICATOR ALL RANGES |
| Material | PLASTIC |
| Sensitivity Rating | 66.0 MILLIVOLTS |
| Scale Graduation Type | LINEAR SINGLE INDICATOR ALL RANGES |
| Measurement Range | +0.0 TO 15.0 MILLIAMPERES, DC SINGLE INDICATOR SECOND RANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 475391 | 3/9 Design control — primary reference U.S. Government activity |
| M125S | 5/9 Secondary reference Simpson Electric Company, Inc. |
NSN 6625-00-809-0475 is a Ammeter, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5305-00-960-5095. Verify interchangeability with system specifications before substitution.
Key specifications for 6625-00-809-0475: Circuit Construction Type: NONELECTRONIC; Mounting Facility Type and Quantity: 3 THREADED STUD(S); Meter Body Diameter Behind Mounting Flange: 2.210 INCHES NOMINAL IN; Indicator Type: DIAL W/POINTER. 29 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.