PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9139038Voltmeter

Us Army Aviation and Missile Command · NSN 6625-00-778-8794 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-778-8794 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-778-8794. Primary manufacturer part number: 9139038.
Features
  • Voltmeter — FSC 6625
  • Scale Graduation Type: NONLINEAR SINGLE INDICATOR ALL RANGES
  • Circuit Attachment Method and Quantity: 2 SCREW AND 2 SOLDER LUG
  • Dial Scale Marking Color: WHITE SINGLE INDICATOR ALL RANGES
  • Mounting Bolt Circle Diameter: 2.440 INCHES NOMINAL IN
  • Features Provided: ZERO ADJUSTER
  • Power Source: EXTERNAL
  • Nuclear Hardness Critical Feature: NONHARDENED
Applications
  • Applications requiring Steel construction
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-778-8794, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-778-8794
Primary Part Number9139038
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerUs Army Aviation and Missile Command
StatusACTIVE
Scale Graduation TypeNONLINEAR SINGLE INDICATOR ALL RANGES
Circuit Attachment Method and Quantity2 SCREW AND 2 SOLDER LUG
Dial Scale Marking ColorWHITE SINGLE INDICATOR ALL RANGES
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Features ProvidedZERO ADJUSTER
Power SourceEXTERNAL
Nuclear Hardness Critical FeatureNONHARDENED
Surface TreatmentENAMEL
Style DesignatorROUND FLUSH MTG
Movement TypeMOVING IRON VANE
MaterialSTEEL
Meter Body Diameter Behind Mounting Flange2.210 INCHES NOMINAL IN
FSC Application DataTEST SET,ELECT. EQUIP.
Movement Suspension MethodTAUT BAND
Meter Depth Behind Mounting Flange1.405 INCHES MAXIMUM IN
ColorUNABLE TO DECODE
Accuracy in Percent-3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Mounting Arrangement StyleSIX HOLE/STUD BOLT CIRCLE
Mounting Facility Type and Quantity6 SCREW AND 6 UNTHREADED HOLE(S)
Mounting Hole Diameter0.125 INCHES NOMINAL IN
Installation DesignPANEL
Furnished Items and QuantityNUT 6; WASHER 6
Indicator TypeDIAL W/POINTER
Pointer ColorWHITE SINGLE INDICATOR ALL RANGES
Circuit Current for Which DesignedAC
Overall Diameter2.695 INCHES MAXIMUM IN
Measurement Range+0.0 TO 7.5 VOLTS, AC SINGLE INDICATOR SECOND RANGE
Measurement Range+0.0 TO 150.0 VOLTS, AC SINGLE INDICATOR FIRST RANGE
Scale Selection MethodTERMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-237-8457 (C512000088)
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Weight0.8100 lbs
Cube0.0560 cu ft
Verified Substitutes 8
6625-00-237-8457C512000088 SUCCESSOR
Ammeter
Kearfott Corporation Div Guidance and Navigation Division
Voltmeter
Voltmeter
6625-01-057-18161522-06710 SUCCESSOR
Ammeter
Simpson Electric Company, Inc.
6625-01-132-46061120-0692 SUCCESSOR
Meter,arbitrary Scale
Keysight Technologies Inc
Voltmeter
6625-00-138-6528 INTERCHANGEABLE
Ammeter
6625-00-710-576816-4059 INTERCHANGEABLE
Meter,audio Level
Jewell Instruments Llc
Cross-Reference Index
Part NumberManufacturer
1522 Solartron Electronics Inc Weston Instruments Div (USA)
9139038 PRIMARY Us Army Aviation and Missile Command (USA)
Related Parts
SUCCESSOR 6625-00-237-8457 Ammeter · C512000088
6625-00-451-7036SUCCESSOR
VOLTMETER
6625-00-539-8475SUCCESSOR
VOLTMETER
6625-01-057-1816SUCCESSOR
AMMETER
1522-06710
6625-01-132-4606SUCCESSOR
METER,ARBITRARY SCALE
1120-0692
6625-01-216-2440SUCCESSOR
VOLTMETER
6625-00-138-6528INTERCHANGEABLE
AMMETER
6625-00-710-5768INTERCHANGEABLE
METER,AUDIO LEVEL
16-4059

Frequently Asked Questions

What is NSN 6625-00-778-8794?

NSN 6625-00-778-8794 is a Voltmeter, manufactured by Us Army Aviation and Missile Command, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-778-8794?

NSN 6625-00-778-8794 has 2 cross-referenced part numbers: 1522 (Solartron Electronics Inc Weston Instruments Div), 9139038 (Us Army Aviation and Missile Command).

What NSN replaces 6625-00-778-8794?

There are 8 known substitutes for 6625-00-778-8794: 6625-00-237-8457, 6625-00-451-7036, 6625-00-539-8475 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9139038?

Key specifications for 9139038: Scale Graduation Type: NONLINEAR SINGLE INDICATOR ALL RANGES; Circuit Attachment Method and Quantity: 2 SCREW AND 2 SOLDER LUG; Dial Scale Marking Color: WHITE SINGLE INDICATOR ALL RANGES; Mounting Bolt Circle Diameter: 2.440 INCHES NOMINAL 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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