PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

61A12D26Transformer,power

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5950-00-061-4477 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-061-4477 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-061-4477. Primary manufacturer part number: 61A12D26.
Features
  • Transformer,power — FSC 5950
  • Winding Operating Voltage: 26.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Winding Operating Current: 50.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Reliability Indicator: NOT ESTABLISHED
  • Terminal Type and Quantity: 8 WIRE HOOK
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-061-4477, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-061-4477
Primary Part Number61A12D26
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Winding Operating Voltage26.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Current50.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity8 WIRE HOOK
Inclosure TypeHERMETICALLY SEALED
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Thread Quantity Per Inch32 SINGLE GROUP
Body Width1.625 INCHES NOMINAL IN
Body Length1.625 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.187 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Height2.375 INCHES NOMINAL IN
Winding Operating Voltage11.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Winding Operating Current150.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Winding Operating Voltage199.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Operating Voltage0.70 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Length1.187 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Current350.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3110-00-117-0779 INTERCHANGEABLE
Bearing,roller,thrust
4730-00-627-3429520-13550-1 INTERCHANGEABLE
Coupling,tolerance
The Boeing Company Div Legacy Wichita
5330-00-907-597238120 INTERCHANGEABLE
Packing,preformed
Mitsubishi Caterpillar Forklift America, Inc
5985-01-070-7450381-20 INTERCHANGEABLE
Attenuator,fixed
Cinch Connectivity Solutions Inc
5975-01-365-520938120 INTERCHANGEABLE
Chassis,electrical-Electronic Eq
Motorola/codex Corp Sub of Motorola Inc
4720-01-386-1813GH793-20 INTERCHANGEABLE
Hose,nonmetallic
Danfoss Power Solutions II, Llc
5120-01-581-4154 INTERCHANGEABLE
Socket,socket Wrench
1560-01-724-760338120 INTERCHANGEABLE
Support,structural Component,air
Avtechtyee Inc Dba Avtech
Cross-Reference Index
Part NumberManufacturer
38120 Freed Transformer Co (USA)
61A12D26 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
3110-00-117-0779INTERCHANGEABLE
BEARING,ROLLER,THRUST
4730-00-627-3429INTERCHANGEABLE
COUPLING,TOLERANCE
520-13550-1
5330-00-907-5972INTERCHANGEABLE
PACKING,PREFORMED
38120
5985-01-070-7450INTERCHANGEABLE
ATTENUATOR,FIXED
381-20
5975-01-365-5209INTERCHANGEABLE
CHASSIS,ELECTRICAL-ELECTRONIC EQ
38120
4720-01-386-1813INTERCHANGEABLE
HOSE,NONMETALLIC
GH793-20
5120-01-581-4154INTERCHANGEABLE
SOCKET,SOCKET WRENCH
1560-01-724-7603INTERCHANGEABLE
SUPPORT,STRUCTURAL COMPONENT,AIR
38120

Frequently Asked Questions

What is NSN 5950-00-061-4477?

NSN 5950-00-061-4477 is a Transformer,power, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-061-4477?

NSN 5950-00-061-4477 has 2 cross-referenced part numbers: 38120 (Freed Transformer Co), 61A12D26 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5950-00-061-4477?

There are 8 known substitutes for 5950-00-061-4477: 3110-00-117-0779, 4730-00-627-3429, 5330-00-907-5972 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 61A12D26?

Key specifications for 61A12D26: Winding Operating Voltage: 26.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY; Mounting Facility Quantity: 4 SINGLE GROUP; Winding Operating Current: 50.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY; Mounting Method: THREADED STUD(S) SINGLE GROUP. 23 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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