PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

125-05680Ammeter

Simpson Electric Company, Inc. · NSN 6625-01-180-0391 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-180-0391 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-180-0391. Primary manufacturer part number: 125-05680.
Features
  • Ammeter — FSC 6625
  • Circuit Current for Which Designed: DC
  • FSC Application Data: TEST SET,ELECT. EQUIP.
  • Indicator Type: DIAL W/POINTER
  • Scale Division Quantity: 50 SINGLE INDICATOR SINGLE RANGE
  • Movement Type: MOVING COIL, PERMANENT MAGNET
  • Accuracy in Percent: -1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ammeter, cataloged under National Stock Number 6625-01-180-0391, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Simpson Electric Company, Inc.. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-01-180-0391
Primary Part Number125-05680
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerSimpson Electric Company, Inc.
StatusACTIVE
Circuit Current for Which DesignedDC
FSC Application DataTEST SET,ELECT. EQUIP.
Indicator TypeDIAL W/POINTER
Scale Division Quantity50 SINGLE INDICATOR SINGLE RANGE
Movement TypeMOVING COIL, PERMANENT MAGNET
Accuracy in Percent-1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Installation DesignPANEL
Meter Depth Behind Mounting Flange1.390 INCHES NOMINAL IN
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Style DesignatorROUND FLUSH MTG
ColorUNABLE TO DECODE
Features ProvidedMAGNETIC SHIELD AND ZERO ADJUSTER
Nuclear Hardness Critical FeatureNONHARDENED
Power SourceEXTERNAL
Circuit Attachment Method and Quantity2 THREADED STUD
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Circuit Construction TypeELECTRONIC, SOLID STATE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Movement Suspension MethodJEWEL PIVOT BASE
Measurement Range+0.0 TO 100.0 MILLIAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Meter Body Diameter Behind Mounting Flange2.180 INCHES NOMINAL IN
Mounting Hole Diameter0.128 INCHES NOMINAL IN
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Panel for Which DesignedMAGNETIC OR NONMAGNETIC
Overall Diameter2.690 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Circuit Current for Which DesignedDC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Weight0.5000 lbs
Cube0.0150 cu ft
Verified Substitutes 10
5999-00-069-1793101-15 SUCCESSOR
Heat Sink,electrical-Electronic
General Dynamics Mission Systems, Inc. Dba Gdms
6625-00-233-468082-178 SUCCESSOR
Meter,audio Level
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
Generator,signal
6625-00-017-8867125 INTERCHANGEABLE
Generator,signal
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
6625-00-255-012004194 INTERCHANGEABLE
Ammeter
Simpson Electric Company, Inc.
6625-00-643-1755 INTERCHANGEABLE
Voltmeter
6625-00-736-8586289Z14D2 INTERCHANGEABLE
Voltmeter
Morris Material Handling, Inc.
6625-00-767-4255125-01500 INTERCHANGEABLE
Ammeter
Simpson Electric Company, Inc.
6625-00-849-9456 INTERCHANGEABLE
Ammeter
6130-01-568-51706437070-01M1 INTERCHANGEABLE
Power Supply
Bae Systems Land & Armaments L.p.
Cross-Reference Index
Part NumberManufacturer
125-05680 Simpson Electric Company, Inc. (USA)
125-5680 Simpson Electric Company, Inc. (USA)
125 Simpson Electric Company, Inc. (USA)
Related Parts
5999-00-069-1793SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
101-15
6625-00-233-4680SUCCESSOR
METER,AUDIO LEVEL
82-178
6625-01-068-1212SUCCESSOR
GENERATOR,SIGNAL
6625-00-017-8867INTERCHANGEABLE
GENERATOR,SIGNAL
125
6625-00-255-0120INTERCHANGEABLE
AMMETER
04194
6625-00-643-1755INTERCHANGEABLE
VOLTMETER
6625-00-736-8586INTERCHANGEABLE
VOLTMETER
289Z14D2
6625-00-767-4255INTERCHANGEABLE
AMMETER
125-01500
6625-00-849-9456INTERCHANGEABLE
AMMETER
6130-01-568-5170INTERCHANGEABLE
POWER SUPPLY
6437070-01M1

Frequently Asked Questions

What is NSN 6625-01-180-0391?

NSN 6625-01-180-0391 is a Ammeter, manufactured by Simpson Electric Company, Inc., classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-180-0391?

NSN 6625-01-180-0391 has 3 cross-referenced part numbers: 125-05680 (Simpson Electric Company, Inc.), 125-5680 (Simpson Electric Company, Inc.), 125 (Simpson Electric Company, Inc.).

What NSN replaces 6625-01-180-0391?

There are 10 known substitutes for 6625-01-180-0391: 5999-00-069-1793, 6625-00-233-4680, 6625-01-068-1212 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 125-05680?

Key specifications for 125-05680: Circuit Current for Which Designed: DC; FSC Application Data: TEST SET,ELECT. EQUIP.; Indicator Type: DIAL W/POINTER; Scale Division Quantity: 50 SINGLE INDICATOR SINGLE RANGE. 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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