PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1521-0-100Voltmeter

Solartron Electronics Inc Weston Instruments Div · NSN 6625-00-580-9545 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-580-9545 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-580-9545. Primary manufacturer part number: 1521-0-100.
Features
  • Voltmeter — FSC 6625
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
  • Movement Type: MOVING IRON VANE
  • Installation Design: PANEL
  • Indicator Type: DIAL W/POINTER
  • Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE
  • Furnished Items and Quantity: NUT 7; LOCKWASHER 5; SEAL 1
  • Sensitivity Rating: 1.0 MILLIAMPERES
Applications
  • Applications requiring Steel construction
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-580-9545, 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 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-580-9545
Primary Part Number1521-0-100
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerSolartron Electronics Inc Weston Instruments Div
StatusCANCELLED
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Movement TypeMOVING IRON VANE
Installation DesignPANEL
Indicator TypeDIAL W/POINTER
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Furnished Items and QuantityNUT 7; LOCKWASHER 5; SEAL 1
Sensitivity Rating1.0 MILLIAMPERES
Scale Division Quantity50 SINGLE INDICATOR SINGLE RANGE
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
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.).
MaterialSTEEL
Power SourceEXTERNAL
Style DesignatorROUND FLUSH MTG
Nuclear Hardness Critical FeatureNONHARDENED
ColorUNABLE TO DECODE
Environmental ProtectionCOLD RESISTANT AND HEAT RESISTANT AND SHOCK RESISTANT AND SUBMERSIBLE AND VIBRATION RESISTANT AND WATERTIGHT
Surface Treatment Document and ClassificationMIL-F-14072 MIL SPEC ALL TREATMENT RESPONSES
FSC Application DataTEST SET,ELECT. EQUIP.
Meter Body Diameter Behind Mounting Flange2.210 INCHES MAXIMUM IN
Overall Diameter2.695 INCHES MAXIMUM IN
Measurement Range+0.0 TO 100.0 VOLTS, DC SINGLE INDICATOR SINGLE RANGE
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Scale Selection MethodTERMINAL
Mounting Facility Type and Quantity3 SCREW AND 3 UNTHREADED HOLE(S)
Circuit Attachment Method and Quantity2 THREADED STUD AND 2 SOLDER LUG
Circuit Current for Which DesignedDC
Movement Suspension MethodJEWEL PIVOT BASE
Meter Depth Behind Mounting Flange1.600 INCHES MAXIMUM IN
Mounting Hole Diameter0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor6625-00-538-9246
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Weight1.0000 lbs
Cube0.0370 cu ft
Verified Substitutes 11
Voltmeter
Voltmeter
6625-00-679-08919073243 SUCCESSOR
Meter,arbitrary Scale
Us Army Aviation and Missile Command
6625-00-875-069610105460 SUCCESSOR
Meter,arbitrary Scale
Us Army Aviation and Missile Command
Wattmeter
6625-00-950-63592514984 SUCCESSOR
Meter,arbitrary Scale
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6625-01-030-00491603463 SUCCESSOR
Voltmeter
Lockheed Martin Corporation Div Rms - Mitchel Field
6625-01-067-1129S10914 SUCCESSOR
Meter,special Scale
Simpson Electric Company, Inc.
5360-00-022-4494 INTERCHANGEABLE
Spring,helical,extension
5840-00-482-8004145020 INTERCHANGEABLE
Control,phase Detec
Northrop Grumman Systems Corporation
Cross-Reference Index
Part NumberManufacturer
1521-0-100 Solartron Electronics Inc Weston Instruments Div (USA)
1521 Solartron Electronics Inc Weston Instruments Div (USA)
145020 Solartron Electronics Inc Weston Instruments Div (USA)
MIL-M-10304/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MR26W100DCVVR Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-10304/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
L291561-3 Raytheon Company Dba Raytheon Co (USA)
Related Parts
SUCCESSOR 6625-00-538-9246 Voltmeter
6625-00-555-3095SUCCESSOR
VOLTMETER
6625-00-679-0891SUCCESSOR
METER,ARBITRARY SCALE
9073243
6625-00-875-0696SUCCESSOR
METER,ARBITRARY SCALE
10105460
6625-00-884-0655SUCCESSOR
WATTMETER
6625-00-950-6359SUCCESSOR
METER,ARBITRARY SCALE
2514984
6625-01-030-0049SUCCESSOR
VOLTMETER
1603463
6625-01-067-1129SUCCESSOR
METER,SPECIAL SCALE
S10914
5360-00-022-4494INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
5840-00-482-8004INTERCHANGEABLE
CONTROL,PHASE DETEC
145020
5935-01-088-0138INTERCHANGEABLE
CONNECTOR

Frequently Asked Questions

What is NSN 6625-00-580-9545?

NSN 6625-00-580-9545 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 6625-00-580-9545?

NSN 6625-00-580-9545 has 7 cross-referenced part numbers: 1521-0-100 (Solartron Electronics Inc Weston Instruments Div), 1521 (Solartron Electronics Inc Weston Instruments Div), 145020 (Solartron Electronics Inc Weston Instruments Div), MIL-M-10304/4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MR26W100DCVVR (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 2 more.

What NSN replaces 6625-00-580-9545?

There are 11 known substitutes for 6625-00-580-9545: 6625-00-538-9246, 6625-00-555-3095, 6625-00-679-0891 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1521-0-100?

Key specifications for 1521-0-100: Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE; Movement Type: MOVING IRON VANE; Installation Design: PANEL; Indicator Type: DIAL W/POINTER. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-580-9545 still in active supply?

NSN 6625-00-580-9545 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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