PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

640268Transformer,audio Frequency

Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc · NSN 5950-00-153-5745 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-153-5745 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-153-5745. Primary manufacturer part number: 640268.
Features
  • Transformer,audio Frequency — FSC 5950
  • Primary to Secondary Turn Ratio: 1 TO 8 SINGLE COMPONENT
  • Nominal Thread Size: 0.099 INCHES SINGLE GROUP IN
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Reliability Indicator: NOT ESTABLISHED
  • Body Outside Diameter: 1.625 INCHES NOMINAL IN
  • Body Length: 1.875 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 48 SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-153-5745, 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 Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-153-5745
Primary Part Number640268
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerBae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc
StatusACTIVE
Primary to Secondary Turn Ratio1 TO 8 SINGLE COMPONENT
Nominal Thread Size0.099 INCHES SINGLE GROUP IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Body Outside Diameter1.625 INCHES NOMINAL IN
Body Length1.875 INCHES NOMINAL IN
Thread Quantity Per Inch48 SINGLE GROUP
Impedance Rating in Ohms150000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Terminal Type and Quantity5 TAB, SOLDER LUG
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Maximum Transformer Power Rating2.0 WATTS SINGLE COMPONENT
Inclosure TypeHERMETICALLY SEALED
Winding Operating Current10.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Mounting Bolt Circle Diameter1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Facility Quantity3 SINGLE GROUP
Impedance Rating in Ohms2350.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Frequency Rating400.0 HERTZ MINIMUM AND 25.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-01-191-680440631 INTERCHANGEABLE
Bearing,roller,cylindrical
Skf Usa Inc.
Cross-Reference Index
Part NumberManufacturer
406312 Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div (USA)
BX17-35 Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div (USA)
640268 PRIMARY Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA)
5631-2K Cessna Aircraft Co Arc Avionics Div (USA)
Related Parts
3110-01-191-6804INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
40631

Frequently Asked Questions

What is NSN 5950-00-153-5745?

NSN 5950-00-153-5745 is a Transformer,audio Frequency, manufactured by Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-153-5745?

NSN 5950-00-153-5745 has 4 cross-referenced part numbers: 406312 (Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div), BX17-35 (Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div), 640268 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc), 5631-2K (Cessna Aircraft Co Arc Avionics Div).

What NSN replaces 5950-00-153-5745?

There is 1 known substitute for 5950-00-153-5745: 3110-01-191-6804. Verify interchangeability with system specifications before substitution.

What are the specifications of 640268?

Key specifications for 640268: Primary to Secondary Turn Ratio: 1 TO 8 SINGLE COMPONENT; Nominal Thread Size: 0.099 INCHES SINGLE GROUP IN; Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT; Reliability Indicator: NOT ESTABLISHED. 18 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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