PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

05D0203G02Wattmeter

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 6625-00-491-5581 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-491-5581 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-491-5581. Primary manufacturer part number: 05D0203G02.
Features
  • Wattmeter — FSC 6625
  • Installation Design: PANEL
  • Mounting Bolt Circle Diameter: 3.160 INCHES NOMINAL IN
  • Dielectric Withstanding Voltage in Volts: 3000.0
  • Measurement Range: +0.0 TO 250.0 WATTS SINGLE INDICATOR SINGLE RANGE
  • Pointer Color: BLACK SINGLE INDICATOR SINGLE RANGE
  • Style Designator: ROUND FLUSH MTG
  • Circuit Attachment Method and Quantity: 2 THREADED STUD
Applications
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Wattmeter, cataloged under National Stock Number 6625-00-491-5581, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 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
NSN6625-00-491-5581
Primary Part Number05D0203G02
Item NameWattmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusACTIVE
Installation DesignPANEL
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
Dielectric Withstanding Voltage in Volts3000.0
Measurement Range+0.0 TO 250.0 WATTS SINGLE INDICATOR SINGLE RANGE
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Style DesignatorROUND FLUSH MTG
Circuit Attachment Method and Quantity2 THREADED STUD
Special Test FeaturesCONFORMS TO MIL-M-10304,TYPE MR36W100DCUAR
Furnished Items and QuantityTERM. HDW 2; MTG HDW3
Environmental ProtectionCOLD RESISTANT AND HEAT RESISTANT AND SHOCK RESISTANT AND SUBMERSIBLE AND VIBRATION RESISTANT AND WATERTIGHT
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Surface TreatmentENAMEL SEMIGLOSS
FSC Application DataTEST SET,ELECT. EQUIP.
Nuclear Hardness Critical FeatureNONHARDENED
MaterialSTEEL CORROSION RESISTING
Supplementary FeaturesINTERNAL RESISTANCE 1250 OHMS; RUGGEDIZED
Power SourceEXTERNAL
Mounting Facility Type and Quantity3 SCREW AND 3 UNTHREADED HOLE(S)
ColorUNABLE TO DECODE
Movement Suspension MethodJEWEL PIVOT BASE
Meter Depth Behind Mounting Flange1.188 INCHES NOMINAL IN
Movement TypeMOVING COIL, PERMANENT MAGNET
Meter Body Diameter Behind Mounting Flange2.812 INCHES NOMINAL IN
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Criticality Code JustificationFEAT
Scale Graduation TypeNONLINEAR SINGLE INDICATOR SINGLE RANGE
Features ProvidedLUMINOUS SCALE MARKING AND MAGNETIC SHIELD AND ZERO ADJUSTER
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Circuit Current for Which DesignedDC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeZN
Weight0.6400 lbs
Cube0.0434 cu ft
Verified Substitutes 12
Ammeter
Contact,electrical
5999-00-265-6541365 SUCCESSOR
Clip,electrical
Lucent Technologies Inc Corporate Headquarters
Circuit Card Assembly
5999-00-577-74186044863 SUCCESSOR
Clip,electrical
Lockheed Martin Corporation Div Rotary and Mission Systems
6625-00-768-28572062224 SUCCESSOR
Voltmeter
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5999-01-295-5489645A713H04 SUCCESSOR
Heat Sink,electrical-Electronic
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Processor,file Server
6625-00-073-998225-801860-3 INTERCHANGEABLE
Voltmeter
General Dynamics Mission Systems, Inc.
6625-00-103-032710279474 INTERCHANGEABLE
Meter,arbitrary Scale
Us Army Aviation and Missile Command
Cross-Reference Index
Part NumberManufacturer
R-330 Ideal Precision Meter Co Dba Ideal Precision Meter Co (USA)
05D0203G02 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
05D0203G02 Jewell Instruments Llc (USA)
365 Jewell Instruments, Llc Dba Modutec Use CAGE Code 33005 for Cataloging (USA)
25R Simpson Electric Company, Inc. (USA)
631 Phaostron Instrument and Electronic Company (USA)
05D0203G02 Phaostron Instrument and Electronic Company (USA)
Related Parts
6625-00-668-9246SUCCESSOR
AMMETER
5999-00-035-8721SUCCESSOR
CONTACT,ELECTRICAL
5999-00-265-6541SUCCESSOR
CLIP,ELECTRICAL
365
5998-00-350-1454SUCCESSOR
CIRCUIT CARD ASSEMBLY
5999-00-577-7418SUCCESSOR
CLIP,ELECTRICAL
6044863
6625-00-768-2857SUCCESSOR
VOLTMETER
2062224
5999-01-295-5489SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
645A713H04
7025-01-682-2307SUCCESSOR
PROCESSOR,FILE SERVER
6625-00-073-9982INTERCHANGEABLE
VOLTMETER
25-801860-3
6625-00-103-0327INTERCHANGEABLE
METER,ARBITRARY SCALE
10279474
6625-00-127-6672INTERCHANGEABLE
VOLTMETER
213039
6625-00-325-0977INTERCHANGEABLE
METER,SPECIAL SCALE
1183016P1

Frequently Asked Questions

What is NSN 6625-00-491-5581?

NSN 6625-00-491-5581 is a Wattmeter, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-491-5581?

NSN 6625-00-491-5581 has 7 cross-referenced part numbers: R-330 (Ideal Precision Meter Co Dba Ideal Precision Meter Co), 05D0203G02 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 05D0203G02 (Jewell Instruments Llc), 365 (Jewell Instruments, Llc Dba Modutec Use CAGE Code 33005 for Cataloging), 25R (Simpson Electric Company, Inc.) and 2 more.

What NSN replaces 6625-00-491-5581?

There are 12 known substitutes for 6625-00-491-5581: 6625-00-668-9246, 5999-00-035-8721, 5999-00-265-6541 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 05D0203G02?

Key specifications for 05D0203G02: Installation Design: PANEL; Mounting Bolt Circle Diameter: 3.160 INCHES NOMINAL IN; Dielectric Withstanding Voltage in Volts: 3000.0; Special Features: CRITICAL APPLICATION: COMMUNICATIONS AND DATA SYSTEMS; POSEIDON MATERIAL (HULL,MECH,ELEC,ORD AND ELECT.). 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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