PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4420Wattmeter

Bird Electronic Corporation Div Bird Electronic Corp · NSN 6625-01-426-1903 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-426-1903 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-426-1903. Primary manufacturer part number: 4420.
Features
  • Wattmeter — FSC 6625
  • Circuit Attachment Method and Quantity: 2 CONNECTOR, PLUG
  • Accuracy in Percent: -0.25 TO 0.25 AT FULL SCALE SINGLE INDICATOR ALL RANGES
  • Features Provided: PORTABLE
  • Operating Voltage Rating in Volts: 115.0 AC MINIMUM AND 230.0 AC MAXIMUM
  • Measurement Range: +1.0 TO 3.0 VOLTS, STANDING WAVE RATIO SINGLE INDICATOR ALL RANGES
  • Style Designator: PORTABLE W/TILT VIEW HANDLE
  • Installation Design: BENCH
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Wattmeter, cataloged under National Stock Number 6625-01-426-1903, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Bird Electronic Corporation Div Bird Electronic Corp. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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: Active.

Technical Specifications
ParameterValue
NSN6625-01-426-1903
Primary Part Number4420
Item NameWattmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerBird Electronic Corporation Div Bird Electronic Corp
StatusACTIVE
Circuit Attachment Method and Quantity2 CONNECTOR, PLUG
Accuracy in Percent-0.25 TO 0.25 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Features ProvidedPORTABLE
Operating Voltage Rating in Volts115.0 AC MINIMUM AND 230.0 AC MAXIMUM
Measurement Range+1.0 TO 3.0 VOLTS, STANDING WAVE RATIO SINGLE INDICATOR ALL RANGES
Style DesignatorPORTABLE W/TILT VIEW HANDLE
Installation DesignBENCH
Scale Graduation TypeLINEAR SINGLE INDICATOR ALL RANGES
Frequency Response Range+50.000 TO 60.000 HERTZ
Frequency Rating50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM
Pointer ColorBLACK SINGLE INDICATOR ALL RANGES
Scale Division Quantity11 SINGLE INDICATOR ALL RANGES
Dial Scale Marking ColorBLACK SINGLE INDICATOR ALL RANGES
Indicator TypeDIAL W/POINTER
Scale Selection MethodSWITCH
Circuit Current for Which DesignedAC
Circuit Attachment Method and Quantity2 CONNECTOR, PLUG
Accuracy in Percent-0.25 TO 0.25 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Features ProvidedPORTABLE
Operating Voltage Rating in Volts115.0 AC MINIMUM AND 230.0 AC MAXIMUM
Measurement Range+1.0 TO 3.0 VOLTS, STANDING WAVE RATIO SINGLE INDICATOR ALL RANGES
Style DesignatorPORTABLE W/TILT VIEW HANDLE
Installation DesignBENCH
Scale Graduation TypeLINEAR SINGLE INDICATOR ALL RANGES
Frequency Response Range+50.000 TO 60.000 HERTZ
Frequency Rating50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM
Pointer ColorBLACK SINGLE INDICATOR ALL RANGES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
7045-01-196-097676204026 SUCCESSOR
Disk Cartridge,magnetic
Control Data Systems Inc Contracts Dept
5998-01-122-7341 INTERCHANGEABLE
Extractor,electrical Card
Cross-Reference Index
Part NumberManufacturer
4420 PRIMARY Bird Electronic Corporation Div Bird Electronic Corp (USA)
Related Parts
7045-01-196-0976SUCCESSOR
DISK CARTRIDGE,MAGNETIC
76204026
5998-01-122-7341INTERCHANGEABLE
EXTRACTOR,ELECTRICAL CARD

Frequently Asked Questions

What is NSN 6625-01-426-1903?

NSN 6625-01-426-1903 is a Wattmeter, manufactured by Bird Electronic Corporation Div Bird Electronic Corp, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-426-1903?

NSN 6625-01-426-1903 has 1 cross-referenced part number: 4420 (Bird Electronic Corporation Div Bird Electronic Corp).

What NSN replaces 6625-01-426-1903?

There are 2 known substitutes for 6625-01-426-1903: 7045-01-196-0976, 5998-01-122-7341. Verify interchangeability with system specifications before substitution.

What are the specifications of 4420?

Key specifications for 4420: Circuit Attachment Method and Quantity: 2 CONNECTOR, PLUG; Accuracy in Percent: -0.25 TO 0.25 AT FULL SCALE SINGLE INDICATOR ALL RANGES; Features Provided: PORTABLE; Operating Voltage Rating in Volts: 115.0 AC MINIMUM AND 230.0 AC MAXIMUM. 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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