PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-PRF-10304/11Voltmeter

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6625-00-668-8049 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-668-8049 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-668-8049. Primary manufacturer part number: MIL-PRF-10304/11.
Features
  • Voltmeter — FSC 6625
  • Sensitivity Rating: 150.0 MILLIVOLTS
  • Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE
  • Installation Design: PANEL
  • FSC Application Data: TEST SET,ELECT. EQUIP.
  • Scale Selection Method: TERMINAL
  • Furnished Items and Quantity: NUT 7; LOCKWASHER 3; FLAT WASHER 4; SEAL 1
  • Specification/standard Data: 81349-MIL-M-10304/11 GOVERNMENT SPECIFICATION
Applications
  • Applications requiring Steel construction
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-668-8049, 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 6 commercial cross-references from 4 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
NSN6625-00-668-8049
Primary Part NumberMIL-PRF-10304/11
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
Sensitivity Rating150.0 MILLIVOLTS
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Installation DesignPANEL
FSC Application DataTEST SET,ELECT. EQUIP.
Scale Selection MethodTERMINAL
Furnished Items and QuantityNUT 7; LOCKWASHER 3; FLAT WASHER 4; SEAL 1
Specification/standard Data81349-MIL-M-10304/11 GOVERNMENT SPECIFICATION
Dielectric Withstanding Voltage in Volts3000.0
Nuclear Hardness Critical FeatureNONHARDENED
Indicator TypeDIAL W/POINTER
Meter Depth Behind Mounting Flange1.660 INCHES MAXIMUM IN
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
Meter Body Diameter Behind Mounting Flange2.800 INCHES MAXIMUM IN
Circuit Current for Which DesignedDC
MaterialSTEEL
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Scale Division Quantity40 SINGLE INDICATOR SINGLE RANGE
Environmental ProtectionAIRTIGHT AND DUST RESISTANT AND FUNGUS RESISTANT AND HEAT RESISTANT AND HUMIDITY RESISTANT AND SHOCK RESISTANT AND VIBRATION RESISTANT AND WATER RESISTANT
Movement TypeMOVING IRON VANE
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.).
Measurement Range+0.0 TO 200.0 VOLTS, DC SINGLE INDICATOR SINGLE RANGE
Special MarkingsON BACK,SEALED DO NOT OPEN
Surface TreatmentPAINT
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Movement Suspension MethodJEWEL PIVOT BASE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Overall Diameter3.510 INCHES MAXIMUM IN
Mounting Hole Diameter0.150 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor6625-00-167-9799
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Verified Substitutes 12
Multimeter
Voltmeter
Voltmeter
6625-00-238-54061531 SUCCESSOR
Voltmeter
American Instrument Corp
6625-00-533-6158120-25 SUCCESSOR
Voltmeter
Jewell Instruments Llc
6625-00-542-0830900308-3 SUCCESSOR
Voltmeter
Raytheon Company Dba Raytheon
Ammeter
6625-00-565-01198519152 SUCCESSOR
Ammeter
Us Army Aviation and Missile Command
6625-00-580-1025HS3-7040890P2 SUCCESSOR
Wattmeter
Jewell Instruments Llc
Ammeter
Cross-Reference Index
Part NumberManufacturer
MIL-PRF-10304/11 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
724278-14 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
MIL-M-10304/11 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1531 Solartron Electronics Inc Weston Instruments Div (USA)
MR36W200DCVVR Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
311-01080 Phaostron Instrument and Electronic Company (USA)
Related Parts
SUCCESSOR 6625-00-167-9799 Voltmeter
6625-00-065-0152SUCCESSOR
MULTIMETER
6625-00-068-5564SUCCESSOR
VOLTMETER
6625-00-238-5406SUCCESSOR
VOLTMETER
1531
6625-00-533-6158SUCCESSOR
VOLTMETER
120-25
6625-00-542-0830SUCCESSOR
VOLTMETER
900308-3
6625-00-553-7622SUCCESSOR
AMMETER
6625-00-565-0119SUCCESSOR
AMMETER
8519152
6625-00-580-1025SUCCESSOR
WATTMETER
HS3-7040890P2
6625-00-580-3228SUCCESSOR
AMMETER
6625-00-585-5321SUCCESSOR
METER,MULTIPLE SCALE
365-615
6625-00-635-8756SUCCESSOR
WATTMETER

Frequently Asked Questions

What is NSN 6625-00-668-8049?

NSN 6625-00-668-8049 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 6625-00-668-8049?

NSN 6625-00-668-8049 has 6 cross-referenced part numbers: MIL-PRF-10304/11 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 724278-14 (Lockheed Martin Corporation Div Rms - Mitchel Field), MIL-M-10304/11 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 1531 (Solartron Electronics Inc Weston Instruments Div), MR36W200DCVVR (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 6625-00-668-8049?

There are 12 known substitutes for 6625-00-668-8049: 6625-00-065-0152, 6625-00-068-5564, 6625-00-167-9799 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-PRF-10304/11?

Key specifications for MIL-PRF-10304/11: Sensitivity Rating: 150.0 MILLIVOLTS; Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE; Installation Design: PANEL; FSC Application Data: TEST SET,ELECT. EQUIP.. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-668-8049 still in active supply?

NSN 6625-00-668-8049 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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