PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-M-10304/6Voltmeter

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6625-00-649-2846 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-649-2846 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-649-2846. Primary manufacturer part number: MIL-M-10304/6.
Features
  • Voltmeter — FSC 6625
  • Mounting Facility Type and Quantity: 3 SCREW AND 3 UNTHREADED HOLE(S)
  • Nuclear Hardness Critical Feature: NONHARDENED
  • Color: UNABLE TO DECODE
  • Dielectric Withstanding Voltage in Volts: 3000.0
  • Style Designator: ROUND FLUSH MTG
  • Indicator Type: DIAL W/POINTER
  • Movement Type: MOVING IRON VANE
Applications
  • Applications requiring Steel construction
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-649-2846, 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 30 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-649-2846
Primary Part NumberMIL-M-10304/6
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
StatusCANCELLED
Mounting Facility Type and Quantity3 SCREW AND 3 UNTHREADED HOLE(S)
Nuclear Hardness Critical FeatureNONHARDENED
ColorUNABLE TO DECODE
Dielectric Withstanding Voltage in Volts3000.0
Style DesignatorROUND FLUSH MTG
Indicator TypeDIAL W/POINTER
Movement TypeMOVING IRON VANE
Furnished Items and QuantityNUT 7; LOCKWASHER 5; SEAL 1
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Special MarkingsON BACK,SEALED DO NOT OPEN
Sensitivity Rating4.0 VOLT-AMPERES
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Scale Selection MethodTERMINAL
Environmental ProtectionAIRTIGHT AND DUST RESISTANT AND FUNGUS RESISTANT AND HEAT RESISTANT AND HUMIDITY RESISTANT AND SHOCK RESISTANT AND VIBRATION RESISTANT AND WATER RESISTANT
Overall Diameter2.695 INCHES MAXIMUM IN
Meter Depth Behind Mounting Flange1.600 INCHES MAXIMUM IN
Frequency Rating60.0 HERTZ NOMINAL
Specification/standard Data81349-MIL-M-10304/6 GOVERNMENT SPECIFICATION
Test Data Document81349-MIL-M-10304 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.).
Frequency Response Range+25.000 TO 125.000 HERTZ
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Meter Body Diameter Behind Mounting Flange2.210 INCHES MAXIMUM IN
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
MaterialSTEEL
Circuit Attachment Method and Quantity2 SOLDER LUG AND 2 THREADED STUD
FSC Application DataTEST SET,ELECT. EQUIP.
Special Test FeaturesCOMPLIES WITH MIL-M-10304
Features ProvidedMAGNETIC SHIELD AND ZERO ADJUSTER
Power SourceEXTERNAL
Movement Suspension MethodJEWEL PIVOT BASE
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor6625-00-555-3094
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeY
Verified Substitutes 4
No Item Name Available
Voltmeter
Ammeter
Voltmeter
Cross-Reference Index
Part NumberManufacturer
MIL-M-10304/6 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-10304/6 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MR26W008ACVVR Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
SUCCESSOR 6625-00-555-3094 Voltmeter
6625-00-581-8600SUCCESSOR
NO ITEM NAME AVAILABLE
6625-00-585-9956SUCCESSOR
AMMETER
6625-01-099-3791SUCCESSOR
VOLTMETER

Frequently Asked Questions

What is NSN 6625-00-649-2846?

NSN 6625-00-649-2846 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: cancelled.

What are the part numbers for NSN 6625-00-649-2846?

NSN 6625-00-649-2846 has 3 cross-referenced part numbers: MIL-M-10304/6 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-10304/6 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MR26W008ACVVR (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6625-00-649-2846?

There are 4 known substitutes for 6625-00-649-2846: 6625-00-581-8600, 6625-00-555-3094, 6625-00-585-9956 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-M-10304/6?

Key specifications for MIL-M-10304/6: Mounting Facility Type and Quantity: 3 SCREW AND 3 UNTHREADED HOLE(S); Nuclear Hardness Critical Feature: NONHARDENED; Color: UNABLE TO DECODE; Dielectric Withstanding Voltage in Volts: 3000.0. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-649-2846 still in active supply?

NSN 6625-00-649-2846 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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