PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-PRF-10304/13Voltmeter

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6625-00-899-7021 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-899-7021 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-899-7021. Primary manufacturer part number: MIL-PRF-10304/13.
Features
  • Voltmeter — FSC 6625
  • Installation Design: PANEL
  • Pointer Color: WHITE SINGLE INDICATOR SINGLE RANGE
  • Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S)
  • Movement Suspension Method: TAUT BAND
  • Mounting Bolt Circle Diameter: 3.160 INCHES NOMINAL IN
  • Sensitivity Rating: 100.0 OHMS PER VOLT
  • Scale Division Quantity: 50 SINGLE INDICATOR SINGLE RANGE
Applications
  • Applications requiring Steel construction
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-899-7021, 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 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-899-7021
Primary Part NumberMIL-PRF-10304/13
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
Installation DesignPANEL
Pointer ColorWHITE SINGLE INDICATOR SINGLE RANGE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Movement Suspension MethodTAUT BAND
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
Sensitivity Rating100.0 OHMS PER VOLT
Scale Division Quantity50 SINGLE INDICATOR SINGLE RANGE
ColorUNABLE TO DECODE
Measurement Range+0.0 TO 250.0 VOLTS, AC SINGLE INDICATOR SINGLE RANGE
FSC Application DataTEST SET ELECTRONIC
Meter Depth Behind Mounting Flange1.515 INCHES NOMINAL IN
Indicator TypeDIAL W/POINTER
Movement TypeMOVING IRON VANE
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
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.).
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Overall Diameter3.500 INCHES NOMINAL IN
Style DesignatorROUND FLUSH MTG
Nuclear Hardness Critical FeatureNONHARDENED
Specification/standard Data81349-MIL-M-10304/13 GOVERNMENT SPECIFICATION
Meter Body Diameter Behind Mounting Flange2.750 INCHES NOMINAL IN
MaterialSTEEL
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorWHITE SINGLE INDICATOR SINGLE RANGE
Dielectric Withstanding Voltage in Volts3000.0
Scale Selection MethodSWITCH
Circuit Attachment Method and Quantity2 THREADED STUD
Mounting Hole Diameter0.150 INCHES NOMINAL IN
Circuit Current for Which DesignedAC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 9
6625-00-081-2874W9660-1 SUCCESSOR
Voltmeter
Hobart Brothers Llc
6625-00-086-843613212E1373 SUCCESSOR
Meter,special Scale
Cecom Lr Center
6625-00-133-7673A265-1100 SUCCESSOR
Ammeter
Essex Electro Engineers Inc
6625-00-673-55621668283PC2 SUCCESSOR
Meter,arbitrary Scale
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6625-00-840-6504366-205 SUCCESSOR
Voltmeter
Jewell Instruments Llc
6625-00-860-7309560C1-0201 SUCCESSOR
Ammeter
Kurz & Root Generator Company, Llc
Ammeter
6625-01-106-718813217E4129 SUCCESSOR
Meter,special Scale
Cecom Lr Center
6625-01-249-4924378-0789 SUCCESSOR
Voltmeter
Continental Electronics Corp
Cross-Reference Index
Part NumberManufacturer
MIL-PRF-10304/13 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MR36B250AFVVR Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-M-10304/13 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2534 Solartron Electronics Inc Weston Instruments Div (USA)
Related Parts
6625-00-081-2874SUCCESSOR
VOLTMETER
W9660-1
6625-00-086-8436SUCCESSOR
METER,SPECIAL SCALE
13212E1373
6625-00-133-7673SUCCESSOR
AMMETER
A265-1100
6625-00-673-5562SUCCESSOR
METER,ARBITRARY SCALE
1668283PC2
6625-00-840-6504SUCCESSOR
VOLTMETER
366-205
6625-00-860-7309SUCCESSOR
AMMETER
560C1-0201
6625-00-965-0531SUCCESSOR
AMMETER
6625-01-106-7188SUCCESSOR
METER,SPECIAL SCALE
13217E4129
6625-01-249-4924SUCCESSOR
VOLTMETER
378-0789

Frequently Asked Questions

What is NSN 6625-00-899-7021?

NSN 6625-00-899-7021 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 6625-00-899-7021?

NSN 6625-00-899-7021 has 4 cross-referenced part numbers: MIL-PRF-10304/13 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MR36B250AFVVR (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-M-10304/13 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 2534 (Solartron Electronics Inc Weston Instruments Div).

What NSN replaces 6625-00-899-7021?

There are 9 known substitutes for 6625-00-899-7021: 6625-00-081-2874, 6625-00-086-8436, 6625-00-133-7673 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-PRF-10304/13?

Key specifications for MIL-PRF-10304/13: Installation Design: PANEL; Pointer Color: WHITE SINGLE INDICATOR SINGLE RANGE; Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Movement Suspension Method: TAUT BAND. 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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