PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

549888-1Transformer,power

Raytheon Company Dba Raytheon · NSN 5950-00-726-0433 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-726-0433 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-726-0433. Primary manufacturer part number: 549888-1.
Features
  • Transformer,power — FSC 5950
  • Body Length: 3.900 INCHES NOMINAL IN
  • Reliability Indicator: NOT ESTABLISHED
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Body Height: 2.600 INCHES NOMINAL IN
  • Terminal Type and Quantity: 13 TAB, SOLDER LUG
  • Winding Operating Current: 400.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
  • Thread Quantity Per Inch: 32 SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-726-0433, 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 Raytheon Company Dba Raytheon. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-726-0433
Primary Part Number549888-1
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Body Length3.900 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Body Height2.600 INCHES NOMINAL IN
Terminal Type and Quantity13 TAB, SOLDER LUG
Winding Operating Current400.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Thread Quantity Per Inch32 SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Winding Operating Voltage305.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Inclosure TypeHERMETICALLY SEALED
Winding Operating Voltage205.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Winding Operating Voltage360.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Winding Operating Voltage299.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Body Width4.350 INCHES NOMINAL IN
Winding Operating Current410.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Mounting Facility Quantity4 SINGLE GROUP
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Winding Operating Current475.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Width1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Nominal Thread Size0.164 INCHES SINGLE GROUP IN
Input-Output Phase RelationshipTHREE PHASE TO THREE PHASE SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3040-01-231-6934600-143-729-1 INTERCHANGEABLE
Shaft,shouldered
Tulsa Winch, Inc.
3040-01-235-361943729 INTERCHANGEABLE
Shaft,shouldered
Marco Seattle Inc Dba Marco
4820-01-266-1177 INTERCHANGEABLE
Valve,globe
4930-01-314-520598500 INTERCHANGEABLE
Lubricator,airline
S and G Tool Aid Corp Br of Eagles M Tool Warehouse Inc
Cross-Reference Index
Part NumberManufacturer
549888-1 PRIMARY Raytheon Company Dba Raytheon (USA)
43729 Freed Transformer Co (USA)
Related Parts
3040-01-231-6934INTERCHANGEABLE
SHAFT,SHOULDERED
600-143-729-1
3040-01-235-3619INTERCHANGEABLE
SHAFT,SHOULDERED
43729
4820-01-266-1177INTERCHANGEABLE
VALVE,GLOBE
4930-01-314-5205INTERCHANGEABLE
LUBRICATOR,AIRLINE
98500

Frequently Asked Questions

What is NSN 5950-00-726-0433?

NSN 5950-00-726-0433 is a Transformer,power, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-726-0433?

NSN 5950-00-726-0433 has 2 cross-referenced part numbers: 549888-1 (Raytheon Company Dba Raytheon), 43729 (Freed Transformer Co).

What NSN replaces 5950-00-726-0433?

There are 4 known substitutes for 5950-00-726-0433: 3040-01-231-6934, 3040-01-235-3619, 4820-01-266-1177 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 549888-1?

Key specifications for 549888-1: Body Length: 3.900 INCHES NOMINAL IN; Overall Length: 3.900 INCHES NOMINAL IN; Reliability Indicator: NOT ESTABLISHED; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP. 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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