PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R-26ATransformer,power

Magnetek Inc Lighting Products Group · NSN 5950-00-578-1055 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-578-1055 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-578-1055. Primary manufacturer part number: R-26A.
Features
  • Transformer,power — FSC 5950
  • Winding Operating Voltage: 360.00 AC VOLTS MINIMUM AND 440.00 AC VOLTS MAXIMUM SINGLE COMPONENT FIRST SECONDARY
  • Winding Operating Current: 8.0 AMPERES AC NOMINAL SINGLE COMPONENT FOURTH SECONDARY
  • Winding Operating Current: 3.0 AMPERES AC NOMINAL SINGLE COMPONENT THIRD SECONDARY
  • Terminal Type and Quantity: 14 WIRE LEAD
  • Winding Operating Voltage: 360.00 AC VOLTS MINIMUM AND 440.00 AC VOLTS MAXIMUM SINGLE COMPONENT SECOND SECONDARY
  • Mounting Slot Width: 0.375 INCHES NOMINAL SINGLE GROUP IN
  • Body Height: 4.750 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-578-1055, 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 Magnetek Inc Lighting Products Group. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-578-1055
Primary Part NumberR-26A
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerMagnetek Inc Lighting Products Group
StatusCANCELLED
Winding Operating Voltage360.00 AC VOLTS MINIMUM AND 440.00 AC VOLTS MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Winding Operating Current8.0 AMPERES AC NOMINAL SINGLE COMPONENT FOURTH SECONDARY
Winding Operating Current3.0 AMPERES AC NOMINAL SINGLE COMPONENT THIRD SECONDARY
Terminal Type and Quantity14 WIRE LEAD
Winding Operating Voltage360.00 AC VOLTS MINIMUM AND 440.00 AC VOLTS MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Mounting Slot Width0.375 INCHES NOMINAL SINGLE GROUP IN
Body Height4.750 INCHES NOMINAL IN
Winding Operating Voltage5.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Winding Function and Quantity1 PRIMARY AND 5 SECONDARY SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Body Length3.875 INCHES NOMINAL IN
Winding Power Rating50.4 VOLTS-AMPERES SINGLE COMPONENT FOURTH SECONDARY
Mounting MethodSLOT SINGLE GROUP
Inclosure TypePARTIALLY INCLOSED, DOUBLE SHELL
Winding Power Rating15.0 VOLTS-AMPERES SINGLE COMPONENT THIRD SECONDARY
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
Frequency Rating50.0 HERTZ MINIMUM AND 1.5 KILOHERTZ MAXIMUM SINGLE COMPONENT
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Reliability IndicatorNOT ESTABLISHED
Center to Center Distance Between Mounting Facilities Parallel to Width3.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Width4.750 INCHES NOMINAL IN
Mounting Facility Quantity4 SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
7530-00-043-24038220 INTERCHANGEABLE
Chart,recording Instrument
Graphic Controls Acquisition Corp.
6530-00-104-7584 INTERCHANGEABLE
Tubing,sterilization
4140-00-152-3923 INTERCHANGEABLE
Fan,ventilating
5975-00-240-2703 INTERCHANGEABLE
Coupling,electrical Conduit
3030-00-578-011115483 INTERCHANGEABLE
Belt,v
Carlisle Power Transmission Products Inc
2920-00-640-7518 INTERCHANGEABLE
Regulator,engine Generator
6660-00-757-20498220 INTERCHANGEABLE
Light Ring
Belfort Instrument Company
5340-00-996-67638220 INTERCHANGEABLE
Shield,expansion
Compuclassics
5962-01-043-0978SC8220 INTERCHANGEABLE
Microcircuit,hybrid
Data Device Corp Dba Beta Transformer Technology
5342-01-237-90208220 INTERCHANGEABLE
Guide,spring
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
Cross-Reference Index
Part NumberManufacturer
R-26A Magnetek Inc Huntington Div (USA)
R-26A PRIMARY Magnetek Inc Lighting Products Group (USA)
SDT2 Navcom Defense Electronics, Inc. (USA)
8220 Magnetek Inc Huntington Div (USA)
TH.22R49 PRIMARY Thordarson Inc (USA)
PEI 9900 Precision Electronics, Inc (USA)
Related Parts
7530-00-043-2403INTERCHANGEABLE
CHART,RECORDING INSTRUMENT
8220
6530-00-104-7584INTERCHANGEABLE
TUBING,STERILIZATION
4140-00-152-3923INTERCHANGEABLE
FAN,VENTILATING
5975-00-240-2703INTERCHANGEABLE
COUPLING,ELECTRICAL CONDUIT
3030-00-578-0111INTERCHANGEABLE
BELT,V
15483
2920-00-640-7518INTERCHANGEABLE
REGULATOR,ENGINE GENERATOR
6660-00-757-2049INTERCHANGEABLE
LIGHT RING
8220
5340-00-996-6763INTERCHANGEABLE
SHIELD,EXPANSION
8220
5962-01-043-0978INTERCHANGEABLE
MICROCIRCUIT,HYBRID
SC8220
5342-01-237-9020INTERCHANGEABLE
GUIDE,SPRING
8220
6145-01-277-6279INTERCHANGEABLE
CABLE,RADIO FREQUENCY
5365-01-301-1809INTERCHANGEABLE
RING,CONNECTING,ROUND

Frequently Asked Questions

What is NSN 5950-00-578-1055?

NSN 5950-00-578-1055 is a Transformer,power, manufactured by Magnetek Inc Lighting Products Group, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-578-1055?

NSN 5950-00-578-1055 has 6 cross-referenced part numbers: R-26A (Magnetek Inc Huntington Div), R-26A (Magnetek Inc Lighting Products Group), SDT2 (Navcom Defense Electronics, Inc.), 8220 (Magnetek Inc Huntington Div), TH.22R49 (Thordarson Inc) and 1 more.

What NSN replaces 5950-00-578-1055?

There are 12 known substitutes for 5950-00-578-1055: 7530-00-043-2403, 6530-00-104-7584, 4140-00-152-3923 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R-26A?

Key specifications for R-26A: Winding Operating Voltage: 360.00 AC VOLTS MINIMUM AND 440.00 AC VOLTS MAXIMUM SINGLE COMPONENT FIRST SECONDARY; Winding Operating Current: 8.0 AMPERES AC NOMINAL SINGLE COMPONENT FOURTH SECONDARY; Winding Operating Current: 3.0 AMPERES AC NOMINAL SINGLE COMPONENT THIRD SECONDARY; Terminal Type and Quantity: 14 WIRE LEAD. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-578-1055 still in active supply?

NSN 5950-00-578-1055 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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