PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MR49W115AFHVoltmeter

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6625-01-177-2794 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-177-2794 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-177-2794. Primary manufacturer part number: MR49W115AFH.
Features
  • Voltmeter — FSC 6625
  • Power Source: EXTERNAL
  • Features Provided: ZERO ADJUSTER
  • Material: PLASTIC OR STEEL
  • Style Designator: ROUND FLUSH MTG W/4 TABS
  • Overall Diameter: 3.960 INCHES MAXIMUM IN
  • Color: UNABLE TO DECODE
  • Movement Type: MOVING COIL, PERMANENT MAGNET
Applications
  • Applications requiring Plastic or Steel construction
General Description

The Voltmeter, cataloged under National Stock Number 6625-01-177-2794, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-01-177-2794
Primary Part NumberMR49W115AFH
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Power SourceEXTERNAL
Features ProvidedZERO ADJUSTER
MaterialPLASTIC OR STEEL
Style DesignatorROUND FLUSH MTG W/4 TABS
Overall Diameter3.960 INCHES MAXIMUM IN
ColorUNABLE TO DECODE
Movement TypeMOVING COIL, PERMANENT MAGNET
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Installation DesignPANEL
Meter Body Diameter Behind Mounting Flange3.960 INCHES MAXIMUM IN
Meter Depth Behind Mounting Flange9.000 INCHES MAXIMUM IN
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Frequency Rating400.0 HERTZ NOMINAL
Scale Division Quantity5 SINGLE INDICATOR SINGLE RANGE
Furnished Items and QuantitySCRWS 4, HEX HEAD NUTS 4, LOCK WASHERS 4
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 THREADED STUD
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S)
Measurement Range+110.0 TO 120.0 VOLTS, AF SINGLE INDICATOR SINGLE RANGE
Scale Selection MethodTERMINAL
Center to Center Distance Between Mounting Facilities Parallel to Length1.688 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.688 INCHES NOMINAL IN
Circuit Current for Which DesignedAC
Mounting Hole Diameter0.312 INCHES NOMINAL IN
Accuracy in Percent-0.023 TO 0.023 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Indicator TypeDIAL W/POINTER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeZF
Weight3.8200 lbs
Cube0.2445 cu ft
Verified Substitutes 6
6625-00-243-4341 INTERCHANGEABLE
Voltmeter
6625-00-771-7209 INTERCHANGEABLE
Voltmeter
6625-00-889-1745 INTERCHANGEABLE
Voltmeter
6625-00-957-0234 INTERCHANGEABLE
Voltmeter
6625-01-126-5410 INTERCHANGEABLE
Voltmeter
6625-01-210-9163 INTERCHANGEABLE
Voltmeter
Cross-Reference Index
Part NumberManufacturer
MR49W115AFH Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-V-23151 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MR49W115AFH Amf Electronics Div (USA)
Related Parts
6625-00-243-4341INTERCHANGEABLE
VOLTMETER
6625-00-771-7209INTERCHANGEABLE
VOLTMETER
6625-00-889-1745INTERCHANGEABLE
VOLTMETER
6625-00-957-0234INTERCHANGEABLE
VOLTMETER
6625-01-126-5410INTERCHANGEABLE
VOLTMETER
6625-01-210-9163INTERCHANGEABLE
VOLTMETER

Frequently Asked Questions

What is NSN 6625-01-177-2794?

NSN 6625-01-177-2794 is a Voltmeter, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-177-2794?

NSN 6625-01-177-2794 has 3 cross-referenced part numbers: MR49W115AFH (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-V-23151 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MR49W115AFH (Amf Electronics Div).

What NSN replaces 6625-01-177-2794?

There are 6 known substitutes for 6625-01-177-2794: 6625-00-243-4341, 6625-00-771-7209, 6625-00-889-1745 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MR49W115AFH?

Key specifications for MR49W115AFH: Power Source: EXTERNAL; Features Provided: ZERO ADJUSTER; Material: PLASTIC OR STEEL; Style Designator: ROUND FLUSH MTG W/4 TABS. 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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