PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4421Wattmeter

Bird Electronic Corporation Div Bird Electronic Corp · NSN 6625-01-459-4200 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-459-4200 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-459-4200. Primary manufacturer part number: 4421.
Features
  • Wattmeter — FSC 6625
  • Circuit Attachment Method and Quantity: 1 CONNECTOR, PLUG
  • Display Digit Quantity: 3-1/2
  • Style Designator: PORTABLE W/TILT VIEW HANDLE
  • Installation Design: HANDHELD
  • Display Color: BLACK SINGLE INDICATOR SINGLE RANGE
  • Indicator Type: DIGITAL DISPLAY
  • Interface Compatibility: IEEE-488 AND RS-232-C
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Wattmeter, cataloged under National Stock Number 6625-01-459-4200, 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 22 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-01-459-4200
Primary Part Number4421
Item NameWattmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerBird Electronic Corporation Div Bird Electronic Corp
StatusACTIVE
Circuit Attachment Method and Quantity1 CONNECTOR, PLUG
Display Digit Quantity3-1/2
Style DesignatorPORTABLE W/TILT VIEW HANDLE
Installation DesignHANDHELD
Display ColorBLACK SINGLE INDICATOR SINGLE RANGE
Indicator TypeDIGITAL DISPLAY
Interface CompatibilityIEEE-488 AND RS-232-C
Measurement Range+0.1 TO 10000.0 WATTS SINGLE INDICATOR SINGLE RANGE
Accuracy RatingPORM 3 PCT OF READING SINGLE INDICATOR SINGLE RANGE
Circuit Current for Which DesignedAC
Display TypeLIQUID CRYSTAL
Circuit Attachment Method and Quantity1 CONNECTOR, PLUG
Display Digit Quantity3-1/2
Style DesignatorPORTABLE W/TILT VIEW HANDLE
Installation DesignHANDHELD
Display ColorBLACK SINGLE INDICATOR SINGLE RANGE
Indicator TypeDIGITAL DISPLAY
Interface CompatibilityIEEE-488 AND RS-232-C
Measurement Range+0.1 TO 10000.0 WATTS SINGLE INDICATOR SINGLE RANGE
Accuracy RatingPORM 3 PCT OF READING SINGLE INDICATOR SINGLE RANGE
Circuit Current for Which DesignedAC
Display TypeLIQUID CRYSTAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality Code2
Unit of IssueEA
SMR CodeJD
Weight12.2500 lbs
Cube1.6005 cu ft
Verified Substitutes 12
6625-00-583-15269157156 SUCCESSOR
Detector,radio Frequency
Us Army Aviation and Missile Command
Disk Drive Unit
5315-00-012-4553102514 INTERCHANGEABLE
Key,woodruff
Garwood/feller Inc Garwood Winch Div
1620-00-024-6341 INTERCHANGEABLE
Sleeve,check Valve,steer Damper
3655-00-070-04734421 INTERCHANGEABLE
Clamp Assembly,thermometer
Randall Mfg. Co., Inc.
3110-00-100-369807093 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
5905-00-173-732116999PC30 INTERCHANGEABLE
Resistor,adjustable
Ward Leonard Ct Llc
1630-00-369-6495442-1 INTERCHANGEABLE
Piston and Insert Assembly
Smith and Smith Aircraft Co
5920-00-548-99494421 INTERCHANGEABLE
Fuseholder,block
Cooper Bussmann, Llc Dba Cooper Industries
6760-01-015-4456 INTERCHANGEABLE
Floodlight Set,electric
Cross-Reference Index
Part NumberManufacturer
4421 PRIMARY Bird Electronic Corporation Div Bird Electronic Corp (USA)
Related Parts
6625-00-583-1526SUCCESSOR
DETECTOR,RADIO FREQUENCY
9157156
7025-01-437-4463SUCCESSOR
DISK DRIVE UNIT
5315-00-012-4553INTERCHANGEABLE
KEY,WOODRUFF
102514
1620-00-024-6341INTERCHANGEABLE
SLEEVE,CHECK VALVE,STEER DAMPER
3655-00-070-0473INTERCHANGEABLE
CLAMP ASSEMBLY,THERMOMETER
4421
3110-00-100-3698INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
07093
5905-00-173-7321INTERCHANGEABLE
RESISTOR,ADJUSTABLE
16999PC30
1630-00-369-6495INTERCHANGEABLE
PISTON AND INSERT ASSEMBLY
442-1
5920-00-548-9949INTERCHANGEABLE
FUSEHOLDER,BLOCK
4421
6760-01-015-4456INTERCHANGEABLE
FLOODLIGHT SET,ELECTRIC
5910-01-070-6598INTERCHANGEABLE
CAPACITOR,FIXED,PLASTIC DIELECTR
724517-1
5305-01-093-3123INTERCHANGEABLE
SCREW,SHOULDER
4421

Frequently Asked Questions

What is NSN 6625-01-459-4200?

NSN 6625-01-459-4200 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 6625-01-459-4200?

NSN 6625-01-459-4200 has 1 cross-referenced part number: 4421 (Bird Electronic Corporation Div Bird Electronic Corp).

What NSN replaces 6625-01-459-4200?

There are 12 known substitutes for 6625-01-459-4200: 6625-00-583-1526, 7025-01-437-4463, 5315-00-012-4553 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4421?

Key specifications for 4421: Circuit Attachment Method and Quantity: 1 CONNECTOR, PLUG; Display Digit Quantity: 3-1/2; Style Designator: PORTABLE W/TILT VIEW HANDLE; Special Features: RF POWER METER. 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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