PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-M-10304/4Voltmeter

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6625-00-854-2911 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-854-2911 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-854-2911. Primary manufacturer part number: MIL-M-10304/4.
Features
  • Voltmeter — FSC 6625
  • Power Source: EXTERNAL
  • Installation Design: PANEL
  • Movement Type: MOVING COIL, PERMANENT MAGNET
  • Meter Depth Behind Mounting Flange: 1.600 INCHES MAXIMUM IN
  • Dielectric Withstanding Voltage in Volts: 3000.0
  • Style Designator: ROUND FLUSH MTG
  • FSC Application Data: TEST SET,ELECT. EQUIP.
Applications
  • Applications requiring Plastic construction
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-854-2911, 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 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-854-2911
Primary Part NumberMIL-M-10304/4
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
Power SourceEXTERNAL
Installation DesignPANEL
Movement TypeMOVING COIL, PERMANENT MAGNET
Meter Depth Behind Mounting Flange1.600 INCHES MAXIMUM IN
Dielectric Withstanding Voltage in Volts3000.0
Style DesignatorROUND FLUSH MTG
FSC Application DataTEST SET,ELECT. EQUIP.
Surface TreatmentPAINT
Movement Suspension MethodJEWEL PIVOT BASE
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.).
MaterialPLASTIC
ColorUNABLE TO DECODE
Specification/standard Data81349-MIL-M-10304/4 GOVERNMENT SPECIFICATION
Nuclear Hardness Critical FeatureNONHARDENED
Environmental ProtectionAIRTIGHT AND DUST RESISTANT AND FUNGUS RESISTANT AND HEAT RESISTANT AND HUMIDITY RESISTANT AND SHOCK RESISTANT AND VIBRATION RESISTANT AND WATER RESISTANT
Meter Body Diameter Behind Mounting Flange2.210 INCHES MAXIMUM IN
Circuit Attachment Method and Quantity2 SOLDER LUG AND 2 THREADED STUD
Features ProvidedEXTERNAL SHUNTING AND ZERO ADJUSTER
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Sensitivity Rating1.0 MILLIAMPERES
Mounting Facility Type and Quantity3 SCREW AND 3 UNTHREADED HOLE(S)
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Overall Diameter2.695 INCHES MAXIMUM IN
Furnished Items and QuantityNUT 7; LOCKWASHER 5; SEAL 1; RESISTOR 1
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Mounting Hole Diameter0.125 INCHES NOMINAL IN
Circuit Current for Which DesignedDC
Scale Selection MethodTERMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor6625-00-555-3095
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Weight0.6100 lbs
Cube0.0243 cu ft
Verified Substitutes 12
No Item Name Available
Voltmeter
5930-00-065-2084 INTERCHANGEABLE
Switch,rotary
5996-00-234-80032575747 INTERCHANGEABLE
Amplifier-Fault Monitor
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5220-00-240-73049211-12X12INCH INTERCHANGEABLE
Plate,surface
Supfina Machine Co Inc
2040-00-274-3043 INTERCHANGEABLE
Dip Rope
2040-00-554-6875805-1624070ASSY6 INTERCHANGEABLE
Hatch,marine
Naval Ship Systems Command
5935-00-590-9016815-1197060PC1 INTERCHANGEABLE
Connector,plug,electrical
Naval Ship Systems Command
5905-00-809-5362 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
4820-00-835-4910SPCC SPEC INTERCHANGEABLE
Valve,gate
Naval Inventory Control Point Mechanicsburg
Cross-Reference Index
Part NumberManufacturer
MIL-M-10304/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
327C894H03 Westinghouse Electric Corp (USA)
MIL-PRF-10304/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
A2060455-2 L3harris Technologies, Inc. (USA)
MILM10304C-4AMR26W00 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
327C894H03 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
MR26W001DCKVR Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2060455-2 L3harris Technologies, Inc. (USA)
SPCC SPEC Ametek, Inc. Div Aerospace & Defense (USA)
Related Parts
SUCCESSOR 6625-00-555-3095 Voltmeter
6625-00-649-0977SUCCESSOR
NO ITEM NAME AVAILABLE
5930-00-065-2084INTERCHANGEABLE
SWITCH,ROTARY
5996-00-234-8003INTERCHANGEABLE
AMPLIFIER-FAULT MONITOR
2575747
5220-00-240-7304INTERCHANGEABLE
PLATE,SURFACE
9211-12X12INCH
2040-00-274-3043INTERCHANGEABLE
DIP ROPE
2040-00-554-6875INTERCHANGEABLE
HATCH,MARINE
805-1624070ASSY6
5935-00-590-9016INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
815-1197060PC1
5905-00-809-5362INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
4820-00-835-4910INTERCHANGEABLE
VALVE,GATE
SPCC SPEC
4940-01-039-5462INTERCHANGEABLE
GUN,AIR BLOW
5930-01-043-4106INTERCHANGEABLE
SWITCH,THERMOSTATIC

Frequently Asked Questions

What is NSN 6625-00-854-2911?

NSN 6625-00-854-2911 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 6625-00-854-2911?

NSN 6625-00-854-2911 has 9 cross-referenced part numbers: MIL-M-10304/4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 327C894H03 (Westinghouse Electric Corp), MIL-PRF-10304/4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), A2060455-2 (L3harris Technologies, Inc.), MILM10304C-4AMR26W00 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 4 more.

What NSN replaces 6625-00-854-2911?

There are 12 known substitutes for 6625-00-854-2911: 6625-00-649-0977, 6625-00-555-3095, 5930-00-065-2084 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-M-10304/4?

Key specifications for MIL-M-10304/4: Overall Length: 2.650 INCHES MAXIMUM IN; Power Source: EXTERNAL; Installation Design: PANEL; Movement Type: MOVING COIL, PERMANENT MAGNET. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-854-2911 still in active supply?

NSN 6625-00-854-2911 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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