PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-43Transformer,audio Frequency

Newark Electronics Corporation Dba Newark · NSN 5950-00-943-9432 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-943-9432 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-943-9432. Primary manufacturer part number: A-43.
Features
  • Transformer,audio Frequency — FSC 5950
  • Terminal Type and Quantity: 12 TAB, SOLDER LUG
  • Reliability Indicator: NOT ESTABLISHED
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Inclosure Type: FULLY INCLOSED
  • Impedance Rating in Ohms: 150.0 NOMINAL SINGLE COMPONENT ALL SECONDARY
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.156 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Nominal Thread Size: 0.112 INCHES SINGLE 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 5950-00-943-9432, 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 Newark Electronics Corporation Dba Newark. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 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
NSN5950-00-943-9432
Primary Part NumberA-43
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNewark Electronics Corporation Dba Newark
StatusCANCELLED
Terminal Type and Quantity12 TAB, SOLDER LUG
Reliability IndicatorNOT ESTABLISHED
Mounting Facility Quantity4 SINGLE GROUP
Inclosure TypeFULLY INCLOSED
Impedance Rating in Ohms150.0 NOMINAL SINGLE COMPONENT ALL SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Width1.156 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Nominal Thread Size0.112 INCHES SINGLE GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.156 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Frequency Rating20.0 HERTZ MINIMUM AND 30.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Body Width1.500 INCHES NOMINAL IN
Body Height2.000 INCHES NOMINAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Primary to Secondary Turn Ratio1 TO 1 TO 1 T0 1 T0 1 T0 1 SINGLE COMPONENT
Winding Function and Quantity2 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
Maximum Transformer Power Rating30.0 MILLIWATTS SINGLE COMPONENT
Impedance Rating in Ohms150.0 NOMINAL SINGLE COMPONENT ALL PRIMARY
Body Length1.500 INCHES NOMINAL IN
Thread Quantity Per Inch40 SINGLE GROUP
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5960-00-071-7553579R437H01 INTERCHANGEABLE
Electron Tube
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
6530-00-104-7552 INTERCHANGEABLE
Tubing,sterilization
3110-00-156-46745203KN INTERCHANGEABLE
Bearing,ball,annular
Timken Co Div the Timken Company
7530-00-191-49968203 INTERCHANGEABLE
Chart,recording Instrument
Ashcroft Inc Dba Heise
5945-00-261-79278-203 INTERCHANGEABLE
Relay,solid State
Kidde Technologies, Inc Div Kidde Aerospace and Defense
5360-00-290-8912A43 INTERCHANGEABLE
Spring,helical,compression
Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
5305-00-365-25518203 INTERCHANGEABLE
Setscrew
Cummins Inc.
3030-00-504-1364 INTERCHANGEABLE
Belt,v
3030-00-529-0349 INTERCHANGEABLE
Belt,v
3030-00-555-308317451 GATOR BACK 20033566 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
Cross-Reference Index
Part NumberManufacturer
A-43 Newark Electronics Corporation Dba Newark (USA)
25A63 Components Corp of America (USA)
A-43 Opt Industries Inc Div of Electronika Inc (USA)
8203 Precision Electronics, Inc (USA)
25A63 Thordarson Inc (USA)
A-43 Magnetika Inc Div Magnetika/phillipsburg Location (USA)
Related Parts
5960-00-071-7553INTERCHANGEABLE
ELECTRON TUBE
579R437H01
6530-00-104-7552INTERCHANGEABLE
TUBING,STERILIZATION
3110-00-156-4674INTERCHANGEABLE
BEARING,BALL,ANNULAR
5203KN
7530-00-191-4996INTERCHANGEABLE
CHART,RECORDING INSTRUMENT
8203
5945-00-261-7927INTERCHANGEABLE
RELAY,SOLID STATE
8-203
5360-00-290-8912INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
A43
5305-00-365-2551INTERCHANGEABLE
SETSCREW
8203
3030-00-504-1364INTERCHANGEABLE
BELT,V
3030-00-529-0349INTERCHANGEABLE
BELT,V
3030-00-555-3083INTERCHANGEABLE
BELT,V
17451 GATOR BACK 20033566
5935-00-642-5331INTERCHANGEABLE
ADAPTER,LAMPHOLDER TO CONNECTOR
5917
5945-00-643-5414INTERCHANGEABLE
SOLENOID,ELECTRICAL

Frequently Asked Questions

What is NSN 5950-00-943-9432?

NSN 5950-00-943-9432 is a Transformer,audio Frequency, manufactured by Newark Electronics Corporation Dba Newark, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-943-9432?

NSN 5950-00-943-9432 has 6 cross-referenced part numbers: A-43 (Newark Electronics Corporation Dba Newark), 25A63 (Components Corp of America), A-43 (Opt Industries Inc Div of Electronika Inc), 8203 (Precision Electronics, Inc), 25A63 (Thordarson Inc) and 1 more.

What NSN replaces 5950-00-943-9432?

There are 12 known substitutes for 5950-00-943-9432: 5960-00-071-7553, 6530-00-104-7552, 3110-00-156-4674 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-43?

Key specifications for A-43: Special Features: HIGH ELECTROSTATIC SHIELDING; Terminal Type and Quantity: 12 TAB, SOLDER LUG; Reliability Indicator: NOT ESTABLISHED; Mounting Facility Quantity: 4 SINGLE GROUP. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-943-9432 still in active supply?

NSN 5950-00-943-9432 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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