PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BE109Transformer,power

Protran Co Inc · NSN 5950-00-751-7249 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-751-7249 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-751-7249. Primary manufacturer part number: BE109.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Nominal Thread Size: 0.164 INCHES SINGLE GROUP IN
  • Body Length: 2.875 INCHES NOMINAL IN
  • Winding Operating Current: 45.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
  • Winding Function and Quantity: 1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
  • Winding Shielding Method: INTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
  • 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 5950-00-751-7249, 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 Protran Co Inc. Government technical data includes 24 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-751-7249
Primary Part NumberBE109
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerProtran Co Inc
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Nominal Thread Size0.164 INCHES SINGLE GROUP IN
Body Length2.875 INCHES NOMINAL IN
Winding Operating Current45.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Winding Shielding MethodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Thread Quantity Per Inch32 SINGLE GROUP
Body Width2.500 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Winding Operating Voltage600.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Inclosure TypeHERMETICALLY SEALED
Frequency Rating380.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width2.187 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity12 SOLDER STUD
Mounting Facility Quantity4 SINGLE GROUP
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Current8.4 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Winding Operating Current6.3 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Height2.906 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5342-00-874-921410665-2 INTERCHANGEABLE
Mount,resilient,weapon System
Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp
9390-00-924-5855 INTERCHANGEABLE
Nonmetallic Special Shaped Secti
5330-01-176-9786 INTERCHANGEABLE
Retainer,packing
Cross-Reference Index
Part NumberManufacturer
BE109 Protran Co Inc (USA)
106652 Teledyne Controls, Llc Dba Teledyne Controls (USA)
BE109 Ferranti Electric Inc (USA)
Related Parts
5342-00-874-9214INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
10665-2
9390-00-924-5855INTERCHANGEABLE
NONMETALLIC SPECIAL SHAPED SECTI
5330-01-176-9786INTERCHANGEABLE
RETAINER,PACKING

Frequently Asked Questions

What is NSN 5950-00-751-7249?

NSN 5950-00-751-7249 is a Transformer,power, manufactured by Protran Co Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-751-7249?

NSN 5950-00-751-7249 has 3 cross-referenced part numbers: BE109 (Protran Co Inc), 106652 (Teledyne Controls, Llc Dba Teledyne Controls), BE109 (Ferranti Electric Inc).

What NSN replaces 5950-00-751-7249?

There are 3 known substitutes for 5950-00-751-7249: 5342-00-874-9214, 9390-00-924-5855, 5330-01-176-9786. Verify interchangeability with system specifications before substitution.

What are the specifications of BE109?

Key specifications for BE109: Reliability Indicator: NOT ESTABLISHED; Nominal Thread Size: 0.164 INCHES SINGLE GROUP IN; Body Length: 2.875 INCHES NOMINAL IN; Winding Operating Current: 45.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY. 24 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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