PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

38238Transformer,audio Frequency

Freed Transformer Co · NSN 5950-00-648-5745 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-648-5745 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-648-5745. Primary manufacturer part number: 38238.
Features
  • Transformer,audio Frequency — FSC 5950
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Operating Current: 40.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
  • Inclosure Type: HERMETICALLY SEALED
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Body Width: 1.812 INCHES MAXIMUM IN
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-648-5745, 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 Freed Transformer Co. Government technical data includes 19 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-648-5745
Primary Part Number38238
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusCANCELLED
Mounting Facility Quantity4 SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Winding Operating Current40.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Inclosure TypeHERMETICALLY SEALED
Thread Quantity Per Inch32 SINGLE GROUP
Body Width1.812 INCHES MAXIMUM IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Frequency Rating200.0 HERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Impedance Rating in Ohms12000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Impedance Rating in Ohms300.0 NOMINAL SINGLE COMPONENT ALL SECONDARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Body Height2.250 INCHES MAXIMUM IN
Body Length1.938 INCHES MAXIMUM IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Maximum Transformer Power Rating5.0 WATTS SINGLE COMPONENT
Terminal Type and Quantity7 STANDOFF, THREADED STUD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5930-00-166-1340 INTERCHANGEABLE
Switch,sensitive
5133-00-262-2176 INTERCHANGEABLE
Drill,twist
5920-00-296-2058 INTERCHANGEABLE
Fuseholder,block
2510-00-308-591238238 INTERCHANGEABLE
Plate,catch,trailer
L3harris Technologies, Inc Div Space & Airborne Systems
5940-00-665-3981J741M INTERCHANGEABLE
Terminal Box
Joint Electronics Type Designation System
3830-00-777-1325138238 INTERCHANGEABLE
Push Beam Moldboard
New Holland Construction
6150-00-880-4833CX8748ARM63 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Joint Electronics Type Designation System
5950-00-922-7642535993-2 INTERCHANGEABLE
Coil,radio Frequency
Servo Corporation of America
1615-00-997-649438238 INTERCHANGEABLE
Screen,tank
Parker Hannifin Corp Dba Pneutronics
5910-01-179-1010807627 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
North Atlantic Industries, Inc. Dba North Atlantic Industries
Cross-Reference Index
Part NumberManufacturer
38238 Freed Transformer Co (USA)
15064 Basler Electric Co (USA)
677-0338-00 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
5930-00-166-1340INTERCHANGEABLE
SWITCH,SENSITIVE
5133-00-262-2176INTERCHANGEABLE
DRILL,TWIST
5920-00-296-2058INTERCHANGEABLE
FUSEHOLDER,BLOCK
2510-00-308-5912INTERCHANGEABLE
PLATE,CATCH,TRAILER
38238
5940-00-665-3981INTERCHANGEABLE
TERMINAL BOX
J741M
3830-00-777-1325INTERCHANGEABLE
PUSH BEAM MOLDBOARD
138238
6150-00-880-4833INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
CX8748ARM63
5950-00-922-7642INTERCHANGEABLE
COIL,RADIO FREQUENCY
535993-2
1615-00-997-6494INTERCHANGEABLE
SCREEN,TANK
38238
5910-01-179-1010INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
807627
5340-01-216-1720INTERCHANGEABLE
PLUG,VENT
5905-01-335-4342INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
70901-02002-109

Frequently Asked Questions

What is NSN 5950-00-648-5745?

NSN 5950-00-648-5745 is a Transformer,audio Frequency, manufactured by Freed Transformer Co, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-648-5745?

NSN 5950-00-648-5745 has 3 cross-referenced part numbers: 38238 (Freed Transformer Co), 15064 (Basler Electric Co), 677-0338-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).

What NSN replaces 5950-00-648-5745?

There are 12 known substitutes for 5950-00-648-5745: 5930-00-166-1340, 5133-00-262-2176, 5920-00-296-2058 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 38238?

Key specifications for 38238: Mounting Facility Quantity: 4 SINGLE GROUP; Reliability Indicator: NOT ESTABLISHED; Winding Operating Current: 40.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY; Inclosure Type: HERMETICALLY SEALED. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-648-5745 still in active supply?

NSN 5950-00-648-5745 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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