PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

94-579-4Voltmeter

Raytheon Company Dba Raytheon Co · NSN 6625-01-080-5956 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-080-5956 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-080-5956. Primary manufacturer part number: 94-579-4.
Features
  • Voltmeter — FSC 6625
  • Dielectric Withstanding Voltage in Volts: 2500.0
  • Movement Suspension Method: JEWEL PIVOT BASE
  • Scale Graduation Type: LINEAR SINGLE INDICATOR SINGLE RANGE
  • Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S)
  • Power Source: EXTERNAL
  • Scale Selection Method: TERMINAL
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.880 INCHES NOMINAL IN
Applications
  • Applications requiring Plastic construction
General Description

The Voltmeter, cataloged under National Stock Number 6625-01-080-5956, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-01-080-5956
Primary Part Number94-579-4
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon Co
StatusACTIVE
Dielectric Withstanding Voltage in Volts2500.0
Movement Suspension MethodJEWEL PIVOT BASE
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S)
Power SourceEXTERNAL
Scale Selection MethodTERMINAL
Center to Center Distance Between Mounting Facilities Parallel to Width1.880 INCHES NOMINAL IN
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Installation DesignPANEL
Indicator TypeDIAL W/POINTER
Movement TypeMOVING IRON VANE
MaterialPLASTIC
Meter Body Diameter Behind Mounting Flange2.000 INCHES NOMINAL IN
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Style DesignatorRECTANGULAR FLUSH MTG
Scale Division Quantity40 SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Environmental ProtectionDUST RESISTANT
Nuclear Hardness Critical FeatureNONHARDENED
ColorUNABLE TO DECODE
Center to Center Distance Between Mounting Facilities Parallel to Length1.880 INCHES NOMINAL IN
Measurement Range+0.0 TO 80.0 VOLTS, DC SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 THREADED STUD
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Mounting Hole Diameter0.140 INCHES NOMINAL IN
Circuit Current for Which DesignedDC
Meter Depth Behind Mounting Flange1.376 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Weight1.2000 lbs
Cube0.0400 cu ft
Verified Substitutes 6
6240-00-760-3011 INTERCHANGEABLE
Lamp,glow
6625-01-070-749894-579-6 INTERCHANGEABLE
Voltmeter
Raytheon Company Dba Raytheon Co
6625-01-070-749994-462-5 INTERCHANGEABLE
Ammeter
Raytheon Company Dba Raytheon Co
6625-01-070-750094-462-2 INTERCHANGEABLE
Ammeter
Raytheon Company Dba Raytheon Co
6625-01-071-187594-579-7 INTERCHANGEABLE
Voltmeter
Raytheon Company Dba Raytheon Co
5985-01-710-8743AR-2 INTERCHANGEABLE
Antenna
Cushcraft Corp
Cross-Reference Index
Part NumberManufacturer
94-579-4 Raytheon Company (USA)
94-579-4 PRIMARY Raytheon Company Dba Raytheon Co (USA)
94-579-4 Raytheon Company Div Corp (USA)
AR-2 Ammon Instruments Corp Div of Wheelabrator-Frye Inc (USA)
Related Parts
6240-00-760-3011INTERCHANGEABLE
LAMP,GLOW
6625-01-070-7498INTERCHANGEABLE
VOLTMETER
94-579-6
6625-01-070-7499INTERCHANGEABLE
AMMETER
94-462-5
6625-01-070-7500INTERCHANGEABLE
AMMETER
94-462-2
6625-01-071-1875INTERCHANGEABLE
VOLTMETER
94-579-7
5985-01-710-8743INTERCHANGEABLE
ANTENNA
AR-2

Frequently Asked Questions

What is NSN 6625-01-080-5956?

NSN 6625-01-080-5956 is a Voltmeter, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-080-5956?

NSN 6625-01-080-5956 has 4 cross-referenced part numbers: 94-579-4 (Raytheon Company), 94-579-4 (Raytheon Company Dba Raytheon Co), 94-579-4 (Raytheon Company Div Corp), AR-2 (Ammon Instruments Corp Div of Wheelabrator-Frye Inc).

What NSN replaces 6625-01-080-5956?

There are 6 known substitutes for 6625-01-080-5956: 6240-00-760-3011, 6625-01-070-7498, 6625-01-070-7499 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 94-579-4?

Key specifications for 94-579-4: Dielectric Withstanding Voltage in Volts: 2500.0; Overall Width: 3.000 INCHES NOMINAL IN; Movement Suspension Method: JEWEL PIVOT BASE; Scale Graduation Type: LINEAR SINGLE INDICATOR SINGLE RANGE. 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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