PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B4040026Transformer,power

Department of the Army Hq United States Army Communications Research and Development Command · NSN 5950-01-245-1366 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-245-1366 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-245-1366. Primary manufacturer part number: B4040026.
Features
  • Transformer,power — FSC 5950
  • Inclosure Type: FULLY INCLOSED
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Winding Operating Voltage: 10.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
  • Mounting Method: BRACKET(S) AND TAB SINGLE GROUP
  • Winding Operating Voltage: 6.66 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
  • Mounting Tab Width: 0.417 INCHES NOMINAL IN
  • Winding Operating Current: 20.0 AMPERES DC NOMINAL SINGLE COMPONENT ALL SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-245-1366, 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 Department of the Army Hq United States Army Communications Research and Development Command. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-245-1366
Primary Part NumberB4040026
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerDepartment of the Army Hq United States Army Communications Research and Development Command
StatusACTIVE
Inclosure TypeFULLY INCLOSED
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage10.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
Mounting MethodBRACKET(S) AND TAB SINGLE GROUP
Winding Operating Voltage6.66 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Mounting Tab Width0.417 INCHES NOMINAL IN
Winding Operating Current20.0 AMPERES DC NOMINAL SINGLE COMPONENT ALL SECONDARY
Winding Function and Quantity2 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Terminal Type and Quantity12 PIN
Frequency Rating10.0 KILOHERTZ NOMINAL SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5342-00-028-38861411301 INTERCHANGEABLE
Handle Assembly,filter Knife
Purolator Facet Inc. Div Parker Aerospace Filtration Division Dba Purolator Facet, in
5950-00-072-95822270098-3 INTERCHANGEABLE
Coil,radio Frequency
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5136-00-227-8619 INTERCHANGEABLE
Tap,thread Cutting
5330-00-884-88681411-3 INTERCHANGEABLE
Seal
Randall Mfg. Co., Inc.
5905-00-892-727125955-16-1 INTERCHANGEABLE
Resistor,fixed,wire Wound
Ward Leonard Ct Llc
6240-01-085-657614-113 INTERCHANGEABLE
Lamp,incandescent
Applied Avionics, Llc Dba Applied Avionics, Inc
5315-01-350-4194141-13 INTERCHANGEABLE
Pin,straight,headed
Cnh Industrial America Llc Dba Cnh America
7025-01-453-4212 INTERCHANGEABLE
Interface Unit,automatic Data Pr
5305-01-588-915812759-01026 INTERCHANGEABLE
Screw,cap,hexagon Head
Fastenal Company Dba Fastenal Co
8415-01-691-004814113 INTERCHANGEABLE
Support Set,accessory,ground Tro
Streamlight Inc Dba Streamlight Inc
Cross-Reference Index
Part NumberManufacturer
14113 Magnespec Inc (USA)
3C389 Rayco Electronic Manufacturing, Inc. Div Rayco Electronics Mfg Inc (USA)
B4040026 PRIMARY Department of the Army Hq United States Army Communications Research and Development Command (USA)
Related Parts
5342-00-028-3886INTERCHANGEABLE
HANDLE ASSEMBLY,FILTER KNIFE
1411301
5950-00-072-9582INTERCHANGEABLE
COIL,RADIO FREQUENCY
2270098-3
5136-00-227-8619INTERCHANGEABLE
TAP,THREAD CUTTING
5330-00-884-8868INTERCHANGEABLE
SEAL
1411-3
5905-00-892-7271INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
25955-16-1
6240-01-085-6576INTERCHANGEABLE
LAMP,INCANDESCENT
14-113
5315-01-350-4194INTERCHANGEABLE
PIN,STRAIGHT,HEADED
141-13
7025-01-453-4212INTERCHANGEABLE
INTERFACE UNIT,AUTOMATIC DATA PR
5305-01-588-9158INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
12759-01026
8415-01-691-0048INTERCHANGEABLE
SUPPORT SET,ACCESSORY,GROUND TRO
14113

Frequently Asked Questions

What is NSN 5950-01-245-1366?

NSN 5950-01-245-1366 is a Transformer,power, manufactured by Department of the Army Hq United States Army Communications Research and Development Command, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-245-1366?

NSN 5950-01-245-1366 has 3 cross-referenced part numbers: 14113 (Magnespec Inc), 3C389 (Rayco Electronic Manufacturing, Inc. Div Rayco Electronics Mfg Inc), B4040026 (Department of the Army Hq United States Army Communications Research and Development Command).

What NSN replaces 5950-01-245-1366?

There are 10 known substitutes for 5950-01-245-1366: 5342-00-028-3886, 5950-00-072-9582, 5136-00-227-8619 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B4040026?

Key specifications for B4040026: Inclosure Type: FULLY INCLOSED; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Winding Operating Voltage: 10.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY; Mounting Method: BRACKET(S) AND TAB SINGLE GROUP. 14 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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