The Ammeter, cataloged under National Stock Number 6625-01-181-4648, 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through both NSN and commercial part number lookups. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6625-01-181-4648 |
| Primary Part Number | 250400FAFA |
| 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 | ELECTRONIC, SOLID STATE |
| Mounting Facility Type and Quantity | 4 THREADED STUD(S) |
| Meter Body Diameter Behind Mounting Flange | 2.720 INCHES NOMINAL IN |
| Indicator Type | DIAL W/POINTER |
| Mounting Arrangement Style | FOUR HOLE/STUD RECTANGULAR/SQUARE |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Meter Depth Behind Mounting Flange | 1.210 INCHES MAXIMUM 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 |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 4.000 INCHES NOMINAL IN |
| Mounting Stud Diameter | 0.112 INCHES NOMINAL IN |
| Panel for Which Designed | MAGNETIC |
| Power Source | EXTERNAL |
| Style Designator | RECTANGULAR FLUSH MTG |
| Scale Division Quantity | 50 SINGLE INDICATOR SINGLE RANGE |
| Movement Suspension Method | TAUT BAND |
| Color | UNABLE TO DECODE |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Mounting Stud Length | 0.500 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 3.562 INCHES NOMINAL IN |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Material | PLASTIC |
| Scale Graduation Type | LINEAR SINGLE INDICATOR SINGLE RANGE |
| Measurement Range | +0.0 TO 1.0 MILLIAMPERES, DC SINGLE INDICATOR SINGLE RANGE |
| Nuclear Hardness Critical Feature | NONHARDENED |
| 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 | X |
| Unit of Issue | EA |
| Acquisition advice code | J |
| Weight | 0.7500 lbs |
| Cube | 0.0350 cu ft |
| Part Number | Manufacturer |
|---|---|
| 250400FAFA PRIMARY | Yokogawa Corporation of America (USA) |
| Reference | Meaning |
|---|---|
| 50-250400FAFA | 5/9 Secondary reference General Electric Co Meter Business Dept |
| 43A343-3 | C/1 Advisory reference — outside the item-of-supply concept L3harris Maritime Power & Energy Solutions, Inc |
| 43A344-3 | C/1 Advisory reference — outside the item-of-supply concept L3harris Maritime Power & Energy Solutions, Inc |
| 43A344-2 | C/1 Advisory reference — outside the item-of-supply concept L3harris Maritime Power & Energy Solutions, Inc |
| 43A342-1 | C/1 Advisory reference — outside the item-of-supply concept L3harris Maritime Power & Energy Solutions, Inc |
| 43A343-4 | C/1 Advisory reference — outside the item-of-supply concept L3harris Maritime Power & Energy Solutions, Inc |
| 43A342-2 | C/1 Advisory reference — outside the item-of-supply concept L3harris Maritime Power & Energy Solutions, Inc |
| 43A343-5 | C/1 Advisory reference — outside the item-of-supply concept L3harris Maritime Power & Energy Solutions, Inc |
| 43A344-4 | C/1 Advisory reference — outside the item-of-supply concept L3harris Maritime Power & Energy Solutions, Inc |
| 43A343-2 | C/1 Advisory reference — outside the item-of-supply concept L3harris Maritime Power & Energy Solutions, Inc |
| 43A344-1 | C/1 Advisory reference — outside the item-of-supply concept L3harris Maritime Power & Energy Solutions, Inc |
| 50-250400FAFA0-2000A | C/1 Advisory reference — outside the item-of-supply concept General Electric Co Meter Business Dept |
| 43A343-1 | C/1 Advisory reference — outside the item-of-supply concept L3harris Maritime Power & Energy Solutions, Inc |
NSN 6625-01-181-4648 is a Ammeter, manufactured by Yokogawa Corporation of America, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-181-4648 has 1 manufacturer part number on file: 250400FAFA (Yokogawa Corporation of America).
Key specifications for 250400FAFA: Circuit Construction Type: ELECTRONIC, SOLID STATE; Mounting Facility Type and Quantity: 4 THREADED STUD(S); Meter Body Diameter Behind Mounting Flange: 2.720 INCHES NOMINAL IN; Overall Height: 4.410 INCHES NOMINAL IN. 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.