PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2531Voltmeter

Solartron Electronics Inc Weston Instruments Div · NSN 6625-00-649-3838 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-649-3838 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-649-3838. Primary manufacturer part number: 2531.
Features
  • Voltmeter — FSC 6625
  • Color: UNABLE TO DECODE
  • Specification/standard Data: 81349-MIL-M-10304/11 GOVERNMENT SPECIFICATION
  • Surface Treatment Document and Classification: MIL-F-14072 MIL SPEC SINGLE TREATMENT RESPONSE
  • Sensitivity Rating: 1.000 MILLIAMPERES
  • Nuclear Hardness Critical Feature: NONHARDENED
  • Measurement Range: +0.0 TO 1.0 KILOVOLTS, DC SINGLE INDICATOR SINGLE RANGE
  • Scale Division Quantity: 10 SINGLE INDICATOR SINGLE RANGE
Applications
  • Applications requiring Steel construction
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-649-3838, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Solartron Electronics Inc Weston Instruments Div. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-649-3838
Primary Part Number2531
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerSolartron Electronics Inc Weston Instruments Div
StatusCANCELLED
ColorUNABLE TO DECODE
Specification/standard Data81349-MIL-M-10304/11 GOVERNMENT SPECIFICATION
Surface Treatment Document and ClassificationMIL-F-14072 MIL SPEC SINGLE TREATMENT RESPONSE
Sensitivity Rating1.000 MILLIAMPERES
Nuclear Hardness Critical FeatureNONHARDENED
Measurement Range+0.0 TO 1.0 KILOVOLTS, DC SINGLE INDICATOR SINGLE RANGE
Scale Division Quantity10 SINGLE INDICATOR SINGLE RANGE
Mounting Facility Type and Quantity3 SCREW AND 3 UNTHREADED HOLE(S)
Furnished Items and QuantityMTG HDW 3
MaterialSTEEL
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
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.).
Indicator TypeDIAL W/POINTER
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Mounting Hole Diameter0.138 INCHES NOMINAL IN
Installation DesignPANEL
Meter Body Diameter Behind Mounting Flange2.800 INCHES MAXIMUM IN
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Style DesignatorROUND FLUSH MTG
Surface TreatmentENAMEL SEMIGLOSS
Meter Depth Behind Mounting Flange2.450 INCHES MAXIMUM IN
Movement TypeMOVING IRON VANE
Environmental ProtectionCOLD RESISTANT AND HEAT RESISTANT AND SHOCK RESISTANT AND SUBMERSIBLE AND VIBRATION RESISTANT AND WATERTIGHT
FSC Application DataTEST SET,ELECT. EQUIP.
Scale Selection MethodTERMINAL
Circuit Current for Which DesignedDC
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Movement Suspension MethodJEWEL PIVOT BASE
Overall Diameter3.510 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor6625-00-167-9799
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Weight2.0000 lbs
Cube0.0046 cu ft
Verified Substitutes 12
Wattmeter
6625-00-006-3098458-5041-080 SUCCESSOR
Ammeter
Continental Electronics Corp
6625-00-042-8974P6042-279 SUCCESSOR
Multimeter
Projects Unlimited Inc
6625-00-052-3312365-321 SUCCESSOR
Meter,arbitrary Scale
Jewell Instruments Llc
Ammeter
6625-00-103-032710279474 SUCCESSOR
Meter,arbitrary Scale
Us Army Aviation and Missile Command
Voltmeter
6625-00-190-1269378-0287 SUCCESSOR
Wattmeter
Continental Electronics Corp
6625-00-220-5528GS3997 SUCCESSOR
Meter,null
Hamilton Sundstrand Corporation Dba Collins Aerospace
6625-00-357-18021987055 SUCCESSOR
Voltmeter
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
2531 Solartron Electronics Inc Weston Instruments Div (USA)
MR36W001DCKVR Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-M-10304/11 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-10304/11 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
SUCCESSOR 6625-00-167-9799 Voltmeter
6625-00-005-1638SUCCESSOR
WATTMETER
6625-00-006-3098SUCCESSOR
AMMETER
458-5041-080
6625-00-042-8974SUCCESSOR
MULTIMETER
P6042-279
6625-00-052-3312SUCCESSOR
METER,ARBITRARY SCALE
365-321
6625-00-067-7479SUCCESSOR
AMMETER
6625-00-103-0327SUCCESSOR
METER,ARBITRARY SCALE
10279474
6625-00-190-1269SUCCESSOR
WATTMETER
378-0287
6625-00-220-5528SUCCESSOR
METER,NULL
GS3997
6625-00-357-1802SUCCESSOR
VOLTMETER
1987055
6625-00-465-2133SUCCESSOR
AMMETER
458-5040-110
6625-00-470-2187SUCCESSOR
VOLTMETER

Frequently Asked Questions

What is NSN 6625-00-649-3838?

NSN 6625-00-649-3838 is a Voltmeter, manufactured by Solartron Electronics Inc Weston Instruments Div, classified under FSC 6625 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6625-00-649-3838?

NSN 6625-00-649-3838 has 4 cross-referenced part numbers: 2531 (Solartron Electronics Inc Weston Instruments Div), MR36W001DCKVR (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-M-10304/11 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-10304/11 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6625-00-649-3838?

There are 12 known substitutes for 6625-00-649-3838: 6625-00-005-1638, 6625-00-006-3098, 6625-00-042-8974 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2531?

Key specifications for 2531: Color: UNABLE TO DECODE; Specification/standard Data: 81349-MIL-M-10304/11 GOVERNMENT SPECIFICATION; Surface Treatment Document and Classification: MIL-F-14072 MIL SPEC SINGLE TREATMENT RESPONSE; Sensitivity Rating: 1.000 MILLIAMPERES. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-649-3838 still in active supply?

NSN 6625-00-649-3838 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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