PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

621-17004Voltmeter

Phaostron Instrument and Electronic Company · NSN 6625-00-533-6158 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-533-6158 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-533-6158. Primary manufacturer part number: 621-17004.
Features
  • Voltmeter — FSC 6625
  • Movement Type: MOVING COIL, PERMANENT MAGNET
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
  • Features Provided: ZERO ADJUSTER
  • Surface Treatment: ENAMEL
  • Meter Body Diameter Behind Mounting Flange: 2.800 INCHES MAXIMUM IN
  • FSC Application Data: TEST SET,ELECT. EQUIP.
  • Specification/standard Data: 26512-123SCSA597 MANUFACTURERS SOURCE CONTROL
Applications
  • Applications requiring Steel construction
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-533-6158, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Phaostron Instrument and Electronic Company. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 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
NSN6625-00-533-6158
Primary Part Number621-17004
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerPhaostron Instrument and Electronic Company
StatusACTIVE
Movement TypeMOVING COIL, PERMANENT MAGNET
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Features ProvidedZERO ADJUSTER
Surface TreatmentENAMEL
Meter Body Diameter Behind Mounting Flange2.800 INCHES MAXIMUM IN
FSC Application DataTEST SET,ELECT. EQUIP.
Specification/standard Data26512-123SCSA597 MANUFACTURERS SOURCE CONTROL
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
Style DesignatorROUND FLUSH MTG
Indicator TypeDIAL W/POINTER
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
ColorUNABLE TO DECODE
Environmental ProtectionSHOCK RESISTANT AND VIBRATION RESISTANT
Overall Diameter3.500 INCHES MAXIMUM IN
Scale Division Quantity40 SINGLE INDICATOR SINGLE RANGE
Sensitivity Rating1.0 MILLIAMPERES
Installation DesignPANEL
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Power SourceEXTERNAL
Circuit Current for Which DesignedDC
Mounting Hole Diameter0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
Circuit Attachment Method and Quantity2 SOLDERLESS LUG
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Meter Depth Behind Mounting Flange1.690 INCHES MAXIMUM IN
Nuclear Hardness Critical FeatureNONHARDENED
Movement Suspension MethodJEWEL PIVOT BASE
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-102-4748 (51261-90015)
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 12
6625-00-102-474851261-90015 SUCCESSOR
Meter,special Scale
Textron Systems Corporation Dba Textron Systems Corp
6625-00-238-54061531 SUCCESSOR
Voltmeter
American Instrument Corp
Voltmeter
5998-01-363-1829120-25-115 SUCCESSOR
Circuit Card Assembly
Caes Mission Systems Llc
5998-01-363-1833120-25-128 SUCCESSOR
Circuit Card Assembly
Caes Mission Systems Llc
Interface Unit,automatic Data Pr
5935-00-126-072112025 INTERCHANGEABLE
Adapter,connector
Amphenol Corporation Div Amphenol Rf
3110-00-155-6198 INTERCHANGEABLE
Bearing,ball,annular
5120-00-177-6872 INTERCHANGEABLE
Key,socket Head Screw
5935-00-222-9828 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Cross-Reference Index
Part NumberManufacturer
631VE199 Phaostron Instrument and Electronic Company (USA)
621-17004 PRIMARY Phaostron Instrument and Electronic Company (USA)
1531 Solartron Electronics Inc Weston Instruments Div (USA)
621-V-199 PRIMARY Phaostron Instrument and Electronic Company (USA)
123SCSA597-1 Northrop Grumman Systems Corporation (USA)
120-25 PRIMARY Jewell Instruments Llc (USA)
Related Parts
SUCCESSOR 6625-00-102-4748 Meter,special Scale · 51261-90015
6625-00-238-5406SUCCESSOR
VOLTMETER
1531
6625-00-668-8049SUCCESSOR
VOLTMETER
5998-01-363-1829SUCCESSOR
CIRCUIT CARD ASSEMBLY
120-25-115
5998-01-363-1833SUCCESSOR
CIRCUIT CARD ASSEMBLY
120-25-128
7025-01-476-9994SUCCESSOR
INTERFACE UNIT,AUTOMATIC DATA PR
5935-00-126-0721INTERCHANGEABLE
ADAPTER,CONNECTOR
12025
3110-00-155-6198INTERCHANGEABLE
BEARING,BALL,ANNULAR
5120-00-177-6872INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5935-00-222-9828INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
2910-00-377-8857INTERCHANGEABLE
TANK,FUEL
120-25
3040-00-392-7832INTERCHANGEABLE
LEVER,MANUAL CONTROL
SM-B-157322GRPI

Frequently Asked Questions

What is NSN 6625-00-533-6158?

NSN 6625-00-533-6158 is a Voltmeter, manufactured by Phaostron Instrument and Electronic Company, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-533-6158?

NSN 6625-00-533-6158 has 6 cross-referenced part numbers: 631VE199 (Phaostron Instrument and Electronic Company), 621-17004 (Phaostron Instrument and Electronic Company), 1531 (Solartron Electronics Inc Weston Instruments Div), 621-V-199 (Phaostron Instrument and Electronic Company), 123SCSA597-1 (Northrop Grumman Systems Corporation) and 1 more.

What NSN replaces 6625-00-533-6158?

There are 12 known substitutes for 6625-00-533-6158: 6625-00-102-4748, 6625-00-238-5406, 6625-00-668-8049 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 621-17004?

Key specifications for 621-17004: Movement Type: MOVING COIL, PERMANENT MAGNET; Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE; Features Provided: ZERO ADJUSTER; Surface Treatment: ENAMEL. 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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