PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M-434Transformer,power

Magnespec Inc · NSN 5950-00-226-3877 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-226-3877 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-226-3877. Primary manufacturer part number: M-434.
Features
  • Transformer,power — FSC 5950
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 2.687 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Shielding Method: INTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE SINGLE COMPONENT
  • Winding Function and Quantity: 1 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
  • Reliability Indicator: NOT ESTABLISHED
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 3.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Frequency Rating: 57.0 HERTZ MINIMUM AND 63.0 HERTZ MAXIMUM SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-226-3877, is classified within Federal Supply Class 5950 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Magnespec Inc. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-226-3877
Primary Part NumberM-434
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerMagnespec Inc
StatusACTIVE
Center to Center Distance Between Mounting Facilities Parallel to Width2.687 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length3.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Frequency Rating57.0 HERTZ MINIMUM AND 63.0 HERTZ MAXIMUM SINGLE COMPONENT
Inclosure TypeHERMETICALLY SEALED
Winding Operating Current150.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY
Winding Operating Current6.05 AMPERES DC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Thread Quantity Per Inch20 SINGLE GROUP
Body Width4.312 INCHES NOMINAL IN
Body Height3.687 INCHES NOMINAL IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Winding Operating Current40.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Winding Operating Current6.05 AMPERES DC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Winding Operating Voltage400.00 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
Mounting Facility Quantity4 SINGLE GROUP
Body Length5.562 INCHES NOMINAL IN
Nominal Thread Size0.250 INCHES SINGLE GROUP IN
Winding Operating Voltage264.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Terminal Type and Quantity13 STANDOFF, SOLDER LUG
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5310-00-186-0975 INTERCHANGEABLE
Washer,key
6250-00-253-6074M-434 INTERCHANGEABLE
Lampholder
Cole Hersee Company
5950-00-459-4239 INTERCHANGEABLE
Transformer,radio Frequency
Cross-Reference Index
Part NumberManufacturer
211-36632 Danfoss Fluid Power Inc Racine Opn (USA)
M-434 PRIMARY Magnespec Inc (USA)
211-36632 Danfoss Inc (USA)
M-434 Mte Corp Milwaukee Transformer Co (USA)
Related Parts
5310-00-186-0975INTERCHANGEABLE
WASHER,KEY
6250-00-253-6074INTERCHANGEABLE
LAMPHOLDER
M-434
5950-00-459-4239INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY

Frequently Asked Questions

What is NSN 5950-00-226-3877?

NSN 5950-00-226-3877 is a Transformer,power, manufactured by Magnespec Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-226-3877?

NSN 5950-00-226-3877 has 4 cross-referenced part numbers: 211-36632 (Danfoss Fluid Power Inc Racine Opn), M-434 (Magnespec Inc), 211-36632 (Danfoss Inc), M-434 (Mte Corp Milwaukee Transformer Co).

What NSN replaces 5950-00-226-3877?

There are 3 known substitutes for 5950-00-226-3877: 5310-00-186-0975, 6250-00-253-6074, 5950-00-459-4239. Verify interchangeability with system specifications before substitution.

What are the specifications of M-434?

Key specifications for M-434: Center to Center Distance Between Mounting Facilities Parallel to Width: 2.687 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Winding Shielding Method: INTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE SINGLE COMPONENT; Winding Function and Quantity: 1 PRIMARY AND 4 SECONDARY SINGLE COMPONENT; Reliability Indicator: NOT ESTABLISHED. 26 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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