PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

366-205Voltmeter

Jewell Instruments Llc · NSN 6625-00-840-6504 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-840-6504 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-840-6504. Primary manufacturer part number: 366-205.
Features
  • Voltmeter — FSC 6625
  • Dial Scale Marking Color: WHITE SINGLE INDICATOR SINGLE RANGE
  • Mounting Bolt Circle Diameter: 3.160 INCHES NOMINAL IN
  • Meter Body Diameter Behind Mounting Flange: 2.800 INCHES NOMINAL IN
  • Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE
  • Features Provided: MAGNETIC SHIELD AND ZERO ADJUSTER
  • Circuit Attachment Method and Quantity: 2 SOLDER LUG AND 2 THREADED STUD
  • Measurement Range: +0.0 TO 500.0 VOLTS, AC SINGLE INDICATOR SINGLE RANGE
Applications
  • Applications requiring Aluminum construction
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-840-6504, 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 6 commercial cross-references from 5 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
NSN6625-00-840-6504
Primary Part Number366-205
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerJewell Instruments Llc
StatusACTIVE
Dial Scale Marking ColorWHITE SINGLE INDICATOR SINGLE RANGE
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
Meter Body Diameter Behind Mounting Flange2.800 INCHES NOMINAL IN
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Features ProvidedMAGNETIC SHIELD AND ZERO ADJUSTER
Circuit Attachment Method and Quantity2 SOLDER LUG AND 2 THREADED STUD
Measurement Range+0.0 TO 500.0 VOLTS, AC SINGLE INDICATOR SINGLE RANGE
Movement Suspension MethodJEWEL PIVOT BASE
FSC Application DataTEST SET,ELECT. EQUIP.
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Environmental ProtectionSHOCK RESISTANT AND VIBRATION RESISTANT
ColorUNABLE TO DECODE
Sensitivity Rating4.0 MICROAMPERES
Style DesignatorROUND FLUSH MTG
Nuclear Hardness Critical FeatureNONHARDENED
Meter Depth Behind Mounting Flange2.250 INCHES NOMINAL IN
Surface TreatmentANODIZE
MaterialALUMINUM
Scale Division Quantity47 SINGLE INDICATOR SINGLE RANGE
Installation DesignPANEL
Overall Diameter3.510 INCHES NOMINAL IN
Furnished Items and QuantityTERM. HDW 2
Movement TypeMOVING IRON VANE
Power SourceEXTERNAL
Dielectric Withstanding Voltage in Volts3000.0
Indicator TypeDIAL W/POINTER
Pointer ColorWHITE SINGLE INDICATOR SINGLE RANGE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Mounting Hole Diameter0.150 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-133-7673 (A265-1100)
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Verified Substitutes 12
6625-00-133-7673A265-1100 SUCCESSOR
Ammeter
Essex Electro Engineers Inc
6625-00-197-4540D054-0-15AMPRF SUCCESSOR
Ammeter
Yokogawa Corporation of America
Voltmeter
6625-01-249-4924378-0789 SUCCESSOR
Voltmeter
Continental Electronics Corp
6625-00-081-2874W9660-1 INTERCHANGEABLE
Voltmeter
Hobart Brothers Llc
6625-00-086-843613212E1373 INTERCHANGEABLE
Meter,special Scale
Cecom Lr Center
5940-00-115-5004MS20659-120 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
6625-00-489-64091003149 INTERCHANGEABLE
Voltmeter
Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc
6625-00-580-7595 INTERCHANGEABLE
Ammeter
5305-00-638-4070366205 INTERCHANGEABLE
Setscrew
Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
Cross-Reference Index
Part NumberManufacturer
55R Simpson Electric Company, Inc. (USA)
47MR Hickok Waekon Llc (USA)
37 Phaostron Instrument and Electronic Company (USA)
2534 Solartron Electronics Inc Weston Instruments Div (USA)
MR36B500ACVVR Jewell Instruments Llc (USA)
366-205 PRIMARY Jewell Instruments Llc (USA)
Related Parts
SUCCESSOR 6625-00-133-7673 Ammeter · A265-1100
6625-00-197-4540SUCCESSOR
AMMETER
D054-0-15AMPRF
6625-00-899-7021SUCCESSOR
VOLTMETER
6625-01-249-4924SUCCESSOR
VOLTMETER
378-0789
6625-00-081-2874INTERCHANGEABLE
VOLTMETER
W9660-1
6625-00-086-8436INTERCHANGEABLE
METER,SPECIAL SCALE
13212E1373
5940-00-115-5004INTERCHANGEABLE
TERMINAL,LUG
MS20659-120
6625-00-489-6409INTERCHANGEABLE
VOLTMETER
1003149
6625-00-580-7595INTERCHANGEABLE
AMMETER
5305-00-638-4070INTERCHANGEABLE
SETSCREW
366205
6625-00-673-5562INTERCHANGEABLE
METER,ARBITRARY SCALE
1668283PC2
6625-00-844-4152INTERCHANGEABLE
VOLTMETER
59B0130

Frequently Asked Questions

What is NSN 6625-00-840-6504?

NSN 6625-00-840-6504 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 6625-00-840-6504?

NSN 6625-00-840-6504 has 6 cross-referenced part numbers: 55R (Simpson Electric Company, Inc.), 47MR (Hickok Waekon Llc), 37 (Phaostron Instrument and Electronic Company), 2534 (Solartron Electronics Inc Weston Instruments Div), MR36B500ACVVR (Jewell Instruments Llc) and 1 more.

What NSN replaces 6625-00-840-6504?

There are 12 known substitutes for 6625-00-840-6504: 6625-00-133-7673, 6625-00-197-4540, 6625-00-899-7021 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 366-205?

Key specifications for 366-205: Dial Scale Marking Color: WHITE SINGLE INDICATOR SINGLE RANGE; Mounting Bolt Circle Diameter: 3.160 INCHES NOMINAL IN; Meter Body Diameter Behind Mounting Flange: 2.800 INCHES NOMINAL IN; Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE. 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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