PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-PRF-10304/4Voltmeter

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6625-00-451-8704 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-451-8704 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-451-8704. Primary manufacturer part number: MIL-PRF-10304/4.
Features
  • Voltmeter — FSC 6625
  • Indicator Type: DIAL W/POINTER
  • Movement Type: MOVING COIL, PERMANENT MAGNET
  • Accuracy in Percent: -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
  • Overall Diameter: 2.695 INCHES MAXIMUM IN
  • Style Designator: ROUND FLUSH MTG
  • Mounting Bolt Circle Diameter: 2.440 INCHES NOMINAL IN
  • Installation Design: PANEL
Applications
  • Applications requiring Steel construction
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-451-8704, 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 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-451-8704
Primary Part NumberMIL-PRF-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
StatusACTIVE
Indicator TypeDIAL W/POINTER
Movement TypeMOVING COIL, PERMANENT MAGNET
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Overall Diameter2.695 INCHES MAXIMUM IN
Style DesignatorROUND FLUSH MTG
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Installation DesignPANEL
Environmental ProtectionAIRTIGHT AND DUST RESISTANT AND FUNGUS RESISTANT AND HEAT RESISTANT AND HUMIDITY RESISTANT AND SHOCK RESISTANT AND VIBRATION RESISTANT AND WATER RESISTANT
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Specification/standard Data81349-MIL-M-10304/4 GOVERNMENT SPECIFICATION
Dielectric Withstanding Voltage in Volts3000.0
Furnished Items and QuantityNUT 7; LOCKWASHER 5; SEAL 1; RESISTOR 1
MaterialSTEEL
Scale Division Quantity40 SINGLE INDICATOR SINGLE RANGE
Meter Depth Behind Mounting Flange1.600 INCHES MAXIMUM IN
ColorUNABLE TO DECODE
Scale Selection MethodTERMINAL
Features ProvidedEXTERNAL SHUNTING AND MAGNETIC SHIELD AND ZERO ADJUSTER
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.).
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Meter Body Diameter Behind Mounting Flange2.210 INCHES MAXIMUM IN
FSC Application DataTEST SET,ELECT. EQUIP.
Nuclear Hardness Critical FeatureNONHARDENED
Circuit Current for Which DesignedDC
Power SourceEXTERNAL
Circuit Attachment Method and Quantity2 SOLDER LUG AND 2 THREADED STUD
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Measurement Range+0.0 TO 8.0 KILOVOLTS, DC SINGLE INDICATOR SINGLE RANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-555-3095
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 1
Voltmeter
Cross-Reference Index
Part NumberManufacturer
MIL-PRF-10304/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-M-10304/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MR26W008DCKVR Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
SUCCESSOR 6625-00-555-3095 Voltmeter

Frequently Asked Questions

What is NSN 6625-00-451-8704?

NSN 6625-00-451-8704 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 6625-00-451-8704?

NSN 6625-00-451-8704 has 3 cross-referenced part numbers: MIL-PRF-10304/4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-M-10304/4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MR26W008DCKVR (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6625-00-451-8704?

There is 1 known substitute for 6625-00-451-8704: 6625-00-555-3095. Verify interchangeability with system specifications before substitution.

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

Key specifications for MIL-PRF-10304/4: Indicator Type: DIAL W/POINTER; Movement Type: MOVING COIL, PERMANENT MAGNET; Accuracy in Percent: -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE; Overall Diameter: 2.695 INCHES MAXIMUM IN. 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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