PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20051Voltmeter

Fairbanks Morse, Llc · NSN 6625-00-580-3684 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-580-3684 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-580-3684. Primary manufacturer part number: 20051.
Features
  • Voltmeter — FSC 6625
  • Meter Body Diameter Behind Mounting Flange: 2.062 INCHES NOMINAL IN
  • Frequency Response Range: +0.000 TO 60.000 HERTZ
  • Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S)
  • Color: UNABLE TO DECODE
  • Accuracy in Percent: -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
  • Meter Depth Behind Mounting Flange: 1.438 INCHES NOMINAL IN
  • Circuit Current for Which Designed: AC
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-580-3684, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Fairbanks Morse, Llc. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-580-3684
Primary Part Number20051
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerFairbanks Morse, Llc
StatusACTIVE
Meter Body Diameter Behind Mounting Flange2.062 INCHES NOMINAL IN
Frequency Response Range+0.000 TO 60.000 HERTZ
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
ColorUNABLE TO DECODE
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Meter Depth Behind Mounting Flange1.438 INCHES NOMINAL IN
Circuit Current for Which DesignedAC
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Indicator TypeDIAL W/POINTER
Mounting Hole Diameter0.125 INCHES NOMINAL IN
FSC Application DataTEST SET,ELECT. EQUIP.
Nuclear Hardness Critical FeatureNONHARDENED
Movement TypeMOVING IRON VANE
Mounting Bolt Circle Diameter2.316 INCHES NOMINAL IN
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Scale Selection MethodTERMINAL
Installation DesignPANEL
Features ProvidedZERO ADJUSTER
Overall Diameter2.531 INCHES NOMINAL IN
Measurement Range+0.0 TO 150.0 VOLTS, AC SINGLE INDICATOR SINGLE RANGE
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Power SourceEXTERNAL
Movement Suspension MethodTAUT BAND
Circuit Attachment Method and Quantity2 BINDING POST
Style DesignatorROUND FLUSH MTG
Meter Body Diameter Behind Mounting Flange2.062 INCHES NOMINAL IN
Frequency Response Range+0.000 TO 60.000 HERTZ
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
ColorUNABLE TO DECODE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeLN
Verified Substitutes 12
5133-00-228-1338 INTERCHANGEABLE
Drill,twist
4730-00-274-966720051 INTERCHANGEABLE
Packing Nut
Northrop Grumman Systems Corporation Div Marine Systems
3110-00-293-9163 INTERCHANGEABLE
Bearing,ball,annular
3040-01-091-384170400-02252-120 INTERCHANGEABLE
Connecting Link,rigid
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
5915-01-155-705520Q51 INTERCHANGEABLE
Filter,band Pass
Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled
3510-01-162-4472 INTERCHANGEABLE
Yoke and Sleeve
5331-01-180-2414 INTERCHANGEABLE
O-Ring
2510-01-258-3822SP2005 INTERCHANGEABLE
Shock Absorber,direct Action
Itt Enidine Inc. Dba Itt Enidine Inc
5950-01-305-40911836C INTERCHANGEABLE
Coil,electrical
The Arnold Engineering Co
3920-01-465-2478 INTERCHANGEABLE
Cart,general Hauling
Cross-Reference Index
Part NumberManufacturer
20051 Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine (USA)
20051 PRIMARY Fairbanks Morse, Llc (USA)
Related Parts
5133-00-228-1338INTERCHANGEABLE
DRILL,TWIST
4730-00-274-9667INTERCHANGEABLE
PACKING NUT
20051
3110-00-293-9163INTERCHANGEABLE
BEARING,BALL,ANNULAR
3040-01-091-3841INTERCHANGEABLE
CONNECTING LINK,RIGID
70400-02252-120
5915-01-155-7055INTERCHANGEABLE
FILTER,BAND PASS
20Q51
3510-01-162-4472INTERCHANGEABLE
YOKE AND SLEEVE
5331-01-180-2414INTERCHANGEABLE
O-RING
2510-01-258-3822INTERCHANGEABLE
SHOCK ABSORBER,DIRECT ACTION
SP2005
5950-01-305-4091INTERCHANGEABLE
COIL,ELECTRICAL
1836C
3920-01-465-2478INTERCHANGEABLE
CART,GENERAL HAULING
1005-01-502-9977INTERCHANGEABLE
BOLT ASSEMBLY,RIFLE
20051
5930-01-647-4798INTERCHANGEABLE
SWITCH,PUSH
194-26

Frequently Asked Questions

What is NSN 6625-00-580-3684?

NSN 6625-00-580-3684 is a Voltmeter, manufactured by Fairbanks Morse, Llc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-580-3684?

NSN 6625-00-580-3684 has 2 cross-referenced part numbers: 20051 (Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine), 20051 (Fairbanks Morse, Llc).

What NSN replaces 6625-00-580-3684?

There are 12 known substitutes for 6625-00-580-3684: 5133-00-228-1338, 4730-00-274-9667, 3110-00-293-9163 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20051?

Key specifications for 20051: Meter Body Diameter Behind Mounting Flange: 2.062 INCHES NOMINAL IN; Frequency Response Range: +0.000 TO 60.000 HERTZ; Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Color: UNABLE TO DECODE. 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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