PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43389Transformer,audio Frequency

Freed Transformer Co · NSN 5950-01-210-7224 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-210-7224 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-210-7224. Primary manufacturer part number: 43389.
Features
  • Transformer,audio Frequency — FSC 5950
  • Nominal Thread Size: 0.112 INCHES SINGLE GROUP IN
  • Inclosure Type: FULLY INCLOSED
  • Distance Between Mounting Facility Centers: 0.930 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Body Width: 0.730 INCHES MAXIMUM IN
  • Maximum Operating Temp: 125.0 CELSIUS DEGC
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) 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 5950-01-210-7224, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 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
NSN5950-01-210-7224
Primary Part Number43389
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Nominal Thread Size0.112 INCHES SINGLE GROUP IN
Inclosure TypeFULLY INCLOSED
Distance Between Mounting Facility Centers0.930 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Width0.730 INCHES MAXIMUM IN
Maximum Operating Temp125.0 CELSIUS DEGC
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Thread Quantity Per Inch40 SINGLE GROUP
Frequency Rating1.0 KILOHERTZ NOMINAL SINGLE COMPONENT
Mounting Facility Quantity2 SINGLE GROUP
Terminal Type and Quantity5 PIN
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-155-680410786 INTERCHANGEABLE
Bearing,ball,annular
Garwood/feller Inc Garwood Winch Div
5962-01-278-6639 INTERCHANGEABLE
Microcircuit,digital
3431-01-508-5918 INTERCHANGEABLE
Optima Pulse
Cross-Reference Index
Part NumberManufacturer
1128EDC126 Northrop Grumman Systems Corporation (USA)
43389 PRIMARY Freed Transformer Co (USA)
1128EDC126 Northrop Grumman Systems Corporation (USA)
Related Parts
3110-00-155-6804INTERCHANGEABLE
BEARING,BALL,ANNULAR
10786
5962-01-278-6639INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
3431-01-508-5918INTERCHANGEABLE
OPTIMA PULSE

Frequently Asked Questions

What is NSN 5950-01-210-7224?

NSN 5950-01-210-7224 is a Transformer,audio Frequency, manufactured by Freed Transformer Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-210-7224?

NSN 5950-01-210-7224 has 3 cross-referenced part numbers: 1128EDC126 (Northrop Grumman Systems Corporation), 43389 (Freed Transformer Co), 1128EDC126 (Northrop Grumman Systems Corporation).

What NSN replaces 5950-01-210-7224?

There are 3 known substitutes for 5950-01-210-7224: 3110-00-155-6804, 5962-01-278-6639, 3431-01-508-5918. Verify interchangeability with system specifications before substitution.

What are the specifications of 43389?

Key specifications for 43389: Nominal Thread Size: 0.112 INCHES SINGLE GROUP IN; Inclosure Type: FULLY INCLOSED; Overall Length: 1.156 INCHES NOMINAL IN; Overall Height: 0.760 INCHES MAXIMUM IN. 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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