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 6625-00-580-1788 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-580-1788 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-580-1788. Primary manufacturer part number: MIL-PRF-10304/4.
Features
  • Voltmeter — FSC 6625
  • Scale Graduation Type: LINEAR SINGLE INDICATOR SINGLE RANGE
  • Movement Type: MOVING COIL, PERMANENT MAGNET
  • Meter Depth Behind Mounting Flange: 1.600 INCHES MAXIMUM IN
  • Installation Design: PANEL
  • Sensitivity Rating: 1.0 MILLIAMPERES
  • Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE
  • Color: UNABLE TO DECODE
Applications
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-580-1788, 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 28 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
NSN6625-00-580-1788
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
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Movement TypeMOVING COIL, PERMANENT MAGNET
Meter Depth Behind Mounting Flange1.600 INCHES MAXIMUM IN
Installation DesignPANEL
Sensitivity Rating1.0 MILLIAMPERES
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
ColorUNABLE TO DECODE
Power SourceEXTERNAL
Scale Division Quantity40 SINGLE INDICATOR SINGLE RANGE
Surface Treatment Document and ClassificationMIL-F-14072 MIL SPEC SINGLE TREATMENT RESPONSE
Special Test FeaturesENVIRONMENTALS PER MIL-STD-202
Style DesignatorROUND FLUSH MTG
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.).
Surface TreatmentENAMEL SEMIGLOSS
Indicator TypeDIAL W/POINTER
Specification/standard Data81349-MIL-M-10304/4 GOVERNMENT SPECIFICATION
Nuclear Hardness Critical FeatureNONHARDENED
Meter Body Diameter Behind Mounting Flange2.210 INCHES MAXIMUM IN
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
MaterialSTEEL CORROSION RESISTING
FSC Application DataTEST SET,ELECT. EQUIP.
Environmental ProtectionCOLD RESISTANT AND HEAT RESISTANT AND SHOCK RESISTANT AND SUBMERSIBLE AND VIBRATION RESISTANT AND WATERTIGHT
Mounting Facility Type and Quantity3 SCREW AND 3 UNTHREADED HOLE(S)
Mounting Hole Diameter0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
Dielectric Withstanding Voltage in Volts3000.0
Circuit Current for Which DesignedDC
Circuit Attachment Method and Quantity2 SOLDER LUG AND 2 THREADED STUD
Measurement Range+0.0 TO 2.0 KILOVOLTS, DC SINGLE INDICATOR SINGLE RANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-555-3095
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Weight0.5600 lbs
Cube0.0278 cu ft
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
MR26W002DCKVR 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
Related Parts
SUCCESSOR 6625-00-555-3095 Voltmeter

Frequently Asked Questions

What is NSN 6625-00-580-1788?

NSN 6625-00-580-1788 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 6625-00-580-1788?

NSN 6625-00-580-1788 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), MR26W002DCKVR (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).

What NSN replaces 6625-00-580-1788?

There is 1 known substitute for 6625-00-580-1788: 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: Scale Graduation Type: LINEAR SINGLE INDICATOR SINGLE RANGE; Movement Type: MOVING COIL, PERMANENT MAGNET; Meter Depth Behind Mounting Flange: 1.600 INCHES MAXIMUM IN; Installation Design: PANEL. 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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