PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

520141Ammeter

Solartron Electronics Inc Weston Instruments Div · NSN 6625-00-178-8478 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-178-8478 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-178-8478. Primary manufacturer part number: 520141.
Features
  • Ammeter — FSC 6625
  • Power Source: EXTERNAL
  • Circuit Attachment Method and Quantity: 2 THREADED STUD
  • Mounting Hole Diameter: 0.138 INCHES NOMINAL IN
  • Mounting Facility Type and Quantity: 4 THREADED HOLE(S)
  • Scale Graduation Type: LINEAR SINGLE INDICATOR SINGLE RANGE
  • Measurement Range: +0.0 TO 300.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
  • Mounting Bolt Circle Diameter: 2.624 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ammeter, cataloged under National Stock Number 6625-00-178-8478, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Solartron Electronics Inc Weston Instruments Div. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-178-8478
Primary Part Number520141
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerSolartron Electronics Inc Weston Instruments Div
StatusCANCELLED
Power SourceEXTERNAL
Circuit Attachment Method and Quantity2 THREADED STUD
Mounting Hole Diameter0.138 INCHES NOMINAL IN
Mounting Facility Type and Quantity4 THREADED HOLE(S)
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Measurement Range+0.0 TO 300.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
Mounting Bolt Circle Diameter2.624 INCHES NOMINAL IN
Panel for Which DesignedMAGNETIC
Test Data Document81349-MIL-A-6752 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Scale Selection MethodSWITCH
Movement Suspension MethodJEWEL PIVOT BASE
Dial Scale Marking ColorWHITE SINGLE INDICATOR SINGLE RANGE
Installation DesignPANEL
Features ProvidedZERO ADJUSTER
Mounting Arrangement StyleFOUR HOLE/STUD BOLT CIRCLE
Style DesignatorROUND FLUSH MTG W/4 TABS
Pointer ColorWHITE SINGLE INDICATOR SINGLE RANGE
Circuit Construction TypeNONELECTRONIC
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Nuclear Hardness Critical FeatureNONHARDENED
Circuit Current for Which DesignedDC
ColorUNABLE TO DECODE
Movement TypeMOVING COIL, PERMANENT MAGNET
Scale Division Quantity30 SINGLE INDICATOR SINGLE RANGE
Environmental ProtectionDUSTPROOF
Indicator TypeDIAL W/POINTER
Specification/standard Data81349-MIL-A-6752 GOVERNMENT SPECIFICATION
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 7
No Item Name Available
6625-00-178-8479 INTERCHANGEABLE
Ammeter
6625-00-178-8483 INTERCHANGEABLE
Voltmeter
6625-00-544-5899 INTERCHANGEABLE
Meter,special Scale
6625-00-580-3443 INTERCHANGEABLE
Ammeter
6625-00-614-5241 INTERCHANGEABLE
Ammeter
5960-01-086-0417 INTERCHANGEABLE
Electron Tube
Cross-Reference Index
Part NumberManufacturer
520141 Solartron Electronics Inc Weston Instruments Div (USA)
8DW53ACC10 General Electric Co Meter Business Dept (USA)
MIL-A-6752 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AN3201A300 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
560-712M0DEL56 Hickok Waekon Llc (USA)
2B304 Bach-Simpson Ltd (CAN)
Related Parts
6625-00-046-6728SUCCESSOR
NO ITEM NAME AVAILABLE
6625-00-178-8479INTERCHANGEABLE
AMMETER
6625-00-178-8483INTERCHANGEABLE
VOLTMETER
6625-00-544-5899INTERCHANGEABLE
METER,SPECIAL SCALE
6625-00-580-3443INTERCHANGEABLE
AMMETER
6625-00-614-5241INTERCHANGEABLE
AMMETER
5960-01-086-0417INTERCHANGEABLE
ELECTRON TUBE

Frequently Asked Questions

What is NSN 6625-00-178-8478?

NSN 6625-00-178-8478 is a Ammeter, manufactured by Solartron Electronics Inc Weston Instruments Div, classified under FSC 6625 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6625-00-178-8478?

NSN 6625-00-178-8478 has 6 cross-referenced part numbers: 520141 (Solartron Electronics Inc Weston Instruments Div), 8DW53ACC10 (General Electric Co Meter Business Dept), MIL-A-6752 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AN3201A300 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 560-712M0DEL56 (Hickok Waekon Llc) and 1 more.

What NSN replaces 6625-00-178-8478?

There are 7 known substitutes for 6625-00-178-8478: 6625-00-046-6728, 6625-00-178-8479, 6625-00-178-8483 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 520141?

Key specifications for 520141: Power Source: EXTERNAL; Overall Width: 2.375 INCHES NOMINAL IN; Circuit Attachment Method and Quantity: 2 THREADED STUD; Mounting Hole Diameter: 0.138 INCHES NOMINAL IN. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-178-8478 still in active supply?

NSN 6625-00-178-8478 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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