PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MR49W150ACAAHAmmeter

Westinghouse Electric Corp Control Business Unit · NSN 6625-00-090-9430 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-090-9430 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-090-9430. Primary manufacturer part number: MR49W150ACAAH.
Features
  • Ammeter — FSC 6625
  • Circuit Current for Which Designed: AC
  • Mounting Facility Type and Quantity: 4 THREADED STUD(S)
  • Power Source: EXTERNAL
  • Mounting Stud Diameter: 0.250 INCHES NOMINAL IN
  • Movement Suspension Method: JEWEL PIVOT BASE
  • Features Provided: MAGNETIC SHIELD AND ZERO ADJUSTER
  • Circuit Attachment Method and Quantity: 2 THREADED STUD
Applications
  • Applications requiring Steel construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-090-9430, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Westinghouse Electric Corp Control Business Unit. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-090-9430
Primary Part NumberMR49W150ACAAH
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerWestinghouse Electric Corp Control Business Unit
StatusCANCELLED
Circuit Current for Which DesignedAC
Mounting Facility Type and Quantity4 THREADED STUD(S)
Power SourceEXTERNAL
Mounting Stud Diameter0.250 INCHES NOMINAL IN
Movement Suspension MethodJEWEL PIVOT BASE
Features ProvidedMAGNETIC SHIELD AND ZERO ADJUSTER
Circuit Attachment Method and Quantity2 THREADED STUD
Circuit Construction TypeNONELECTRONIC
Scale Selection MethodSWITCH
Meter Body Diameter Behind Mounting Flange3.980 INCHES MAXIMUM IN
Indicator TypeDIAL W/POINTER
MaterialSTEEL
Installation DesignPANEL
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Center to Center Distance Between Mounting Facilities Parallel to Length3.376 INCHES NOMINAL IN
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Accuracy in Percent-1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Movement TypeMOVING IRON VANE
Scale Division Quantity75 SINGLE INDICATOR SINGLE RANGE
Center to Center Distance Between Mounting Facilities Parallel to Width3.376 INCHES NOMINAL IN
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Environmental ProtectionDUSTPROOF
Meter Depth Behind Mounting Flange10.000 INCHES MAXIMUM IN
Specification/standard Data81349-MIL-M-16034/4 GOVERNMENT SPECIFICATION
FSC Application DataTEST SET ELECTRONIC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJF
Weight2.5574 lbs
Cube0.1925 cu ft
Verified Substitutes 2
No Item Name Available
Ammeter
Cross-Reference Index
Part NumberManufacturer
MR49W150ACAAH Westinghouse Electric Corp Control Business Unit
MR49W150ACAAH Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-16034/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-M-16034/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
572-6202-1414356ALTAITEM7 Naval Ship Systems Command (USA)
MR49W150ACAAH Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6625-00-192-7682SUCCESSOR
NO ITEM NAME AVAILABLE
6625-00-186-8772SUCCESSOR
AMMETER

Frequently Asked Questions

What is NSN 6625-00-090-9430?

NSN 6625-00-090-9430 is a Ammeter, manufactured by Westinghouse Electric Corp Control Business Unit, classified under FSC 6625 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6625-00-090-9430?

NSN 6625-00-090-9430 has 6 cross-referenced part numbers: MR49W150ACAAH (Westinghouse Electric Corp Control Business Unit), MR49W150ACAAH (Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-16034/4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-M-16034/4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 572-6202-1414356ALTAITEM7 (Naval Ship Systems Command) and 1 more.

What NSN replaces 6625-00-090-9430?

There are 2 known substitutes for 6625-00-090-9430: 6625-00-192-7682, 6625-00-186-8772. Verify interchangeability with system specifications before substitution.

What are the specifications of MR49W150ACAAH?

Key specifications for MR49W150ACAAH: Special Features: PLASTIC WINDOW; Circuit Current for Which Designed: AC; Mounting Facility Type and Quantity: 4 THREADED STUD(S); Power Source: EXTERNAL. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-090-9430 still in active supply?

NSN 6625-00-090-9430 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.
PartsTable Design LLC · partstable.com