PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

291B404A18Voltmeter

Westinghouse Electric Corp · NSN 6625-00-649-4182 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-649-4182 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-649-4182. Primary manufacturer part number: 291B404A18.
Features
  • Voltmeter — FSC 6625
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
  • Style Designator: RECTANGULAR FLUSH MTG
  • Scale Division Quantity: 30 SINGLE INDICATOR SINGLE RANGE
  • Meter Body Width Behind Mounting Flange: 5.468 INCHES NOMINAL IN
  • Meter Depth Behind Mounting Flange: 2.937 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 3.562 INCHES NOMINAL IN
  • Mounting Arrangement Style: TWO HOLE/STUD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-649-4182, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Westinghouse Electric Corp. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-649-4182
Primary Part Number291B404A18
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerWestinghouse Electric Corp
StatusCANCELLED
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Style DesignatorRECTANGULAR FLUSH MTG
Scale Division Quantity30 SINGLE INDICATOR SINGLE RANGE
Meter Body Width Behind Mounting Flange5.468 INCHES NOMINAL IN
Meter Depth Behind Mounting Flange2.937 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width3.562 INCHES NOMINAL IN
Mounting Arrangement StyleTWO HOLE/STUD
Sensitivity Rating1000.0 OHMS PER VOLT
Installation DesignPANEL
ColorUNABLE TO DECODE
Meter Body Height Behind Mounting Flange5.468 INCHES NOMINAL IN
Measurement Range+0.0 TO 150.0 VOLTS, DC SINGLE INDICATOR SINGLE RANGE
Mounting Facility Type and Quantity2 THREADED STUD(S)
Center to Center Distance Between Mounting Facilities Parallel to Length5.562 INCHES NOMINAL IN
Circuit Current for Which DesignedDC
Circuit Attachment Method and Quantity2 THREADED STUD
Mounting Stud Diameter0.190 INCHES NOMINAL IN
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Style DesignatorRECTANGULAR FLUSH MTG
Scale Division Quantity30 SINGLE INDICATOR SINGLE RANGE
Meter Body Width Behind Mounting Flange5.468 INCHES NOMINAL IN
Meter Depth Behind Mounting Flange2.937 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width3.562 INCHES NOMINAL IN
Mounting Arrangement StyleTWO HOLE/STUD
Sensitivity Rating1000.0 OHMS PER VOLT
Installation DesignPANEL
ColorUNABLE TO DECODE
Meter Body Height Behind Mounting Flange5.468 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeLN
Verified Substitutes 2
No Item Name Available
Voltmeter
Cross-Reference Index
Part NumberManufacturer
KX25 Westinghouse Electric Corp (USA)
1538076 Westinghouse Electric Corp (USA)
1730564 Westinghouse Electric Corp (USA)
291B404A18 PRIMARY Westinghouse Electric Corp (USA)
Related Parts
6625-00-511-4484SUCCESSOR
NO ITEM NAME AVAILABLE
6625-00-585-4950SUCCESSOR
VOLTMETER

Frequently Asked Questions

What is NSN 6625-00-649-4182?

NSN 6625-00-649-4182 is a Voltmeter, manufactured by Westinghouse Electric Corp, classified under FSC 6625 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6625-00-649-4182?

NSN 6625-00-649-4182 has 4 cross-referenced part numbers: KX25 (Westinghouse Electric Corp), 1538076 (Westinghouse Electric Corp), 1730564 (Westinghouse Electric Corp), 291B404A18 (Westinghouse Electric Corp).

What NSN replaces 6625-00-649-4182?

There are 2 known substitutes for 6625-00-649-4182: 6625-00-511-4484, 6625-00-585-4950. Verify interchangeability with system specifications before substitution.

What are the specifications of 291B404A18?

Key specifications for 291B404A18: Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE; Style Designator: RECTANGULAR FLUSH MTG; Scale Division Quantity: 30 SINGLE INDICATOR SINGLE RANGE; Meter Body Width Behind Mounting Flange: 5.468 INCHES NOMINAL IN. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-649-4182 still in active supply?

NSN 6625-00-649-4182 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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