PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

631-16755Wattmeter

Phaostron Instrument and Electronic Company · NSN 6625-00-003-0975 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-003-0975 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-003-0975. Primary manufacturer part number: 631-16755.
Features
  • Wattmeter — FSC 6625
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
  • Meter Depth Behind Mounting Flange: 1.660 INCHES NOMINAL IN
  • Scale Division Quantity: 14 SINGLE INDICATOR SINGLE RANGE
  • Overall Diameter: 3.510 INCHES NOMINAL IN
  • Meter Body Diameter Behind Mounting Flange: 2.800 INCHES NOMINAL IN
  • Accuracy in Percent: -2.000 TO 2.000 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
  • Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S)
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Wattmeter, cataloged under National Stock Number 6625-00-003-0975, 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 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 8 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
NSN6625-00-003-0975
Primary Part Number631-16755
Item NameWattmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerPhaostron Instrument and Electronic Company
StatusACTIVE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Meter Depth Behind Mounting Flange1.660 INCHES NOMINAL IN
Scale Division Quantity14 SINGLE INDICATOR SINGLE RANGE
Overall Diameter3.510 INCHES NOMINAL IN
Meter Body Diameter Behind Mounting Flange2.800 INCHES NOMINAL IN
Accuracy in Percent-2.000 TO 2.000 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Criticality Code JustificationFEAT
Circuit Attachment Method and Quantity2 SCREW
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
ColorUNABLE TO DECODE
Installation DesignPANEL
Style DesignatorROUND FLUSH MTG
Mounting Hole Diameter0.143 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN
Circuit Current for Which DesignedAC
Indicator TypeDIAL W/POINTER
Measurement Range+0.0 TO 133.0 OHMS SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Meter Depth Behind Mounting Flange1.660 INCHES NOMINAL IN
Scale Division Quantity14 SINGLE INDICATOR SINGLE RANGE
Overall Diameter3.510 INCHES NOMINAL IN
Meter Body Diameter Behind Mounting Flange2.800 INCHES NOMINAL IN
Accuracy in Percent-2.000 TO 2.000 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Criticality Code JustificationFEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeDZ
Weight0.5000 lbs
Cube0.0425 cu ft
Verified Substitutes 12
6625-00-869-3144633-16752 SUCCESSOR
Voltmeter
Phaostron Instrument and Electronic Company
3825-00-024-276130015 INTERCHANGEABLE
Bushing,universal J
Meritor Heavy Vehicle Systems, Llc
5910-00-106-6699441-1030-015 INTERCHANGEABLE
Capacitor,fixed,electrolytic
The Boeing Company Div Legacy Boeing Hb1
5895-00-373-274330015 INTERCHANGEABLE
Connector
Raytheon Company Dba Raytheon
6105-00-643-04386785 INTERCHANGEABLE
Armature,motor
Ward Leonard Ct Llc
4730-00-904-245530015-1 INTERCHANGEABLE
Plug,orifice
Admiral Filter Company Llc
6670-00-920-3973 INTERCHANGEABLE
Retainer Plate
5330-00-920-8314300-15 INTERCHANGEABLE
Gasket
Bauer, Inc.
7920-01-035-556744089 INTERCHANGEABLE
Brush,acid Swabbing
Weiler Corporation
5950-01-045-508130015 INTERCHANGEABLE
Transformer,electri
Data Device Corp Dba Beta Transformer Technology
Cross-Reference Index
Part NumberManufacturer
6625000030975 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
260935 Solartron Electronics Inc Weston Instruments Div (USA)
70-4012 Department of Defense Project Manager-Mobile Electric Power (USA)
30554-70-4012 Libby Power Systems, Llc (USA)
36.1783 Ideal Precision Meter Co Dba Ideal Precision Meter Co (USA)
631-16755 PRIMARY Phaostron Instrument and Electronic Company (USA)
04306-3000 Harsco Corp Bmy-Combat Systems Div (USA)
300-15 PRIMARY Jewell Instruments Llc (USA)
Related Parts
6625-00-869-3144SUCCESSOR
VOLTMETER
633-16752
3825-00-024-2761INTERCHANGEABLE
BUSHING,UNIVERSAL J
30015
5910-00-106-6699INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
441-1030-015
5895-00-373-2743INTERCHANGEABLE
CONNECTOR
30015
6105-00-643-0438INTERCHANGEABLE
ARMATURE,MOTOR
6785
4730-00-904-2455INTERCHANGEABLE
PLUG,ORIFICE
30015-1
6670-00-920-3973INTERCHANGEABLE
RETAINER PLATE
5330-00-920-8314INTERCHANGEABLE
GASKET
300-15
7920-01-035-5567INTERCHANGEABLE
BRUSH,ACID SWABBING
44089
5950-01-045-5081INTERCHANGEABLE
TRANSFORMER,ELECTRI
30015
5930-01-050-0228INTERCHANGEABLE
SWITCH ASSEMBLY
3001-5
3020-01-181-2017INTERCHANGEABLE
GEAR,HELICAL
30015-1346

Frequently Asked Questions

What is NSN 6625-00-003-0975?

NSN 6625-00-003-0975 is a Wattmeter, manufactured by Phaostron Instrument and Electronic Company, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-003-0975?

NSN 6625-00-003-0975 has 8 cross-referenced part numbers: 6625000030975 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), 260935 (Solartron Electronics Inc Weston Instruments Div), 70-4012 (Department of Defense Project Manager-Mobile Electric Power), 30554-70-4012 (Libby Power Systems, Llc), 36.1783 (Ideal Precision Meter Co Dba Ideal Precision Meter Co) and 3 more.

What NSN replaces 6625-00-003-0975?

There are 12 known substitutes for 6625-00-003-0975: 6625-00-869-3144, 3825-00-024-2761, 5910-00-106-6699 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 631-16755?

Key specifications for 631-16755: Overall Length: 2.060 INCHES NOMINAL IN; Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE; Meter Depth Behind Mounting Flange: 1.660 INCHES NOMINAL IN; Scale Division Quantity: 14 SINGLE INDICATOR SINGLE RANGE. 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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