PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

431-91Voltmeter

Jewell Instruments Llc · NSN 6625-00-007-2848 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-007-2848 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-007-2848. Primary manufacturer part number: 431-91.
Features
  • Voltmeter — FSC 6625
  • Power Source: EXTERNAL
  • Mounting Stud Diameter: 0.144 INCHES NOMINAL IN
  • Features Provided: ZERO ADJUSTER
  • Circuit Attachment Method and Quantity: 10 SOLDER STUD
  • Movement Suspension Method: JEWEL PIVOT BASE
  • Mounting Facility Type and Quantity: 3 THREADED STUD(S)
  • Overall Diameter: 3.500 INCHES MAXIMUM IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-007-2848, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Jewell Instruments Llc. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-007-2848
Primary Part Number431-91
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerJewell Instruments Llc
StatusACTIVE
Power SourceEXTERNAL
Mounting Stud Diameter0.144 INCHES NOMINAL IN
Features ProvidedZERO ADJUSTER
Circuit Attachment Method and Quantity10 SOLDER STUD
Movement Suspension MethodJEWEL PIVOT BASE
Mounting Facility Type and Quantity3 THREADED STUD(S)
Overall Diameter3.500 INCHES MAXIMUM IN
FSC Application DataTEST SET,ELECT. EQUIP.
Mounting Stud Length0.750 INCHES NOMINAL IN
Surface TreatmentENAMEL
ColorUNABLE TO DECODE
Circuit Current for Which DesignedAC
Style DesignatorROUND FLUSH MTG
Indicator TypeDIAL W/POINTER
Meter Body Diameter Behind Mounting Flange2.760 INCHES MAXIMUM IN
Meter Depth Behind Mounting Flange3.500 INCHES MAXIMUM IN
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Installation DesignPANEL
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Movement TypeMOVING COIL, PERMANENT MAGNET
Power SourceEXTERNAL
Mounting Stud Diameter0.144 INCHES NOMINAL IN
Features ProvidedZERO ADJUSTER
Circuit Attachment Method and Quantity10 SOLDER STUD
Movement Suspension MethodJEWEL PIVOT BASE
Mounting Facility Type and Quantity3 THREADED STUD(S)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeXN
Weight1.2300 lbs
Cube0.1266 cu ft
Verified Substitutes 3
5950-00-262-3221732166-1 INTERCHANGEABLE
Reactor
Raytheon Company Dba Raytheon
3110-00-727-1252309-0702-0000 INTERCHANGEABLE
Bearing,ball,annular
Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings
5935-01-112-17311-583569-1 INTERCHANGEABLE
Connector,receptacle,electrical
Te Connectivity Corporation
Cross-Reference Index
Part NumberManufacturer
363-095 Jewell Instruments Llc (USA)
1583569-1 Custom Metering Company Inc (USA)
1583569-1 Honeywell International, Inc Div Aerospace-Tucson (USA)
431-91 PRIMARY Jewell Instruments Llc (USA)
1583569-1 Allied Signal Inc Aerospace Equipment Systems Eatontown Site (USA)
Related Parts
5950-00-262-3221INTERCHANGEABLE
REACTOR
732166-1
3110-00-727-1252INTERCHANGEABLE
BEARING,BALL,ANNULAR
309-0702-0000
5935-01-112-1731INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
1-583569-1

Frequently Asked Questions

What is NSN 6625-00-007-2848?

NSN 6625-00-007-2848 is a Voltmeter, manufactured by Jewell Instruments Llc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-007-2848?

NSN 6625-00-007-2848 has 5 cross-referenced part numbers: 363-095 (Jewell Instruments Llc), 1583569-1 (Custom Metering Company Inc), 1583569-1 (Honeywell International, Inc Div Aerospace-Tucson), 431-91 (Jewell Instruments Llc), 1583569-1 (Allied Signal Inc Aerospace Equipment Systems Eatontown Site).

What NSN replaces 6625-00-007-2848?

There are 3 known substitutes for 6625-00-007-2848: 5950-00-262-3221, 3110-00-727-1252, 5935-01-112-1731. Verify interchangeability with system specifications before substitution.

What are the specifications of 431-91?

Key specifications for 431-91: Power Source: EXTERNAL; Mounting Stud Diameter: 0.144 INCHES NOMINAL IN; Features Provided: ZERO ADJUSTER; Circuit Attachment Method and Quantity: 10 SOLDER STUD. 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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