PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

300043Transformer,power

Astronics Test Systems Inc · NSN 5950-00-227-8737 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-227-8737 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-227-8737. Primary manufacturer part number: 300043.
Features
  • Transformer,power — FSC 5950
  • Body Length: 3.875 INCHES MAXIMUM IN
  • Winding Function and Quantity: 2 PRIMARY AND 5 SECONDARY SINGLE COMPONENT
  • Winding Operating Voltage: 14.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Reliability Indicator: NOT ESTABLISHED
  • Body Height: 3.250 INCHES NOMINAL IN
  • Winding Operating Current: 500.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIFTH SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-227-8737, 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 Astronics Test Systems Inc. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-227-8737
Primary Part Number300043
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerAstronics Test Systems Inc
StatusACTIVE
Body Length3.875 INCHES MAXIMUM IN
Winding Function and Quantity2 PRIMARY AND 5 SECONDARY SINGLE COMPONENT
Winding Operating Voltage14.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Body Height3.250 INCHES NOMINAL IN
Winding Operating Current500.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIFTH SECONDARY
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Body Width2.937 INCHES MAXIMUM IN
Inclosure TypeFULLY INCLOSED
Mounting Facility Quantity4 SINGLE GROUP
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO CORE SINGLE COMPONENT
Winding Operating Voltage300.00 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
Winding Operating Current40.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY
Winding Operating Current50.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Frequency Rating45.0 HERTZ MINIMUM AND 440.0 HERTZ MAXIMUM SINGLE COMPONENT
Winding Operating Current275.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Winding Operating Current350.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Width2.200 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Length3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage28.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Thread Series DesignatorUNF SINGLE GROUP
Terminal Type and Quantity19 WIRE LEAD
Winding Operating Voltage220.00 AC VOLTS MAXIMUM SINGLE COMPONENT ALL PRIMARY
Winding Operating Voltage40.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Nominal Thread Size0.190 INCHES SINGLE GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4320-00-035-747915157P INTERCHANGEABLE
Disc,balancing
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5950-00-147-75432678622 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5815-00-228-6706SC-C-69992-24 INTERCHANGEABLE
Bar,connecting,teletypewriter
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4730-00-257-2121 INTERCHANGEABLE
Tee,pipe
3110-00-293-9163 INTERCHANGEABLE
Bearing,ball,annular
4320-00-398-783110447 INTERCHANGEABLE
Ring,wearing
Rps-Fl, Inc. Dba Rps Inc
5930-00-505-681110355 INTERCHANGEABLE
Switch,toggle
Thales Usa, Inc. Div Air Mobility Solutions ("ams")
1420-00-629-2456300043 INTERCHANGEABLE
Ball,brake Adjustme
Michigan Dynamics Inc
5985-00-685-923791861 INTERCHANGEABLE
Switch,waveguide
Microlab/fxr Llc
3020-00-690-0637300043 INTERCHANGEABLE
Gear,worm Wheel
Niantic Tool, Inc. Dba Niantic Tool Co
Cross-Reference Index
Part NumberManufacturer
10355 C-Cor Electronics Inc (USA)
300043 PRIMARY Astronics Test Systems Inc (USA)
Related Parts
4320-00-035-7479INTERCHANGEABLE
DISC,BALANCING
15157P
5950-00-147-7543INTERCHANGEABLE
TRANSFORMER,POWER
2678622
5815-00-228-6706INTERCHANGEABLE
BAR,CONNECTING,TELETYPEWRITER
SC-C-69992-24
4730-00-257-2121INTERCHANGEABLE
TEE,PIPE
3110-00-293-9163INTERCHANGEABLE
BEARING,BALL,ANNULAR
4320-00-398-7831INTERCHANGEABLE
RING,WEARING
10447
5930-00-505-6811INTERCHANGEABLE
SWITCH,TOGGLE
10355
1420-00-629-2456INTERCHANGEABLE
BALL,BRAKE ADJUSTME
300043
5985-00-685-9237INTERCHANGEABLE
SWITCH,WAVEGUIDE
91861
3020-00-690-0637INTERCHANGEABLE
GEAR,WORM WHEEL
300043
4730-00-839-5120INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
3000-43
4730-00-958-0384INTERCHANGEABLE
COUPLING,PIPE
SAE J514-3 12-12 140130C

Frequently Asked Questions

What is NSN 5950-00-227-8737?

NSN 5950-00-227-8737 is a Transformer,power, manufactured by Astronics Test Systems Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-227-8737?

NSN 5950-00-227-8737 has 2 cross-referenced part numbers: 10355 (C-Cor Electronics Inc), 300043 (Astronics Test Systems Inc).

What NSN replaces 5950-00-227-8737?

There are 12 known substitutes for 5950-00-227-8737: 4320-00-035-7479, 5950-00-147-7543, 5815-00-228-6706 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 300043?

Key specifications for 300043: Body Length: 3.875 INCHES MAXIMUM IN; Winding Function and Quantity: 2 PRIMARY AND 5 SECONDARY SINGLE COMPONENT; Winding Operating Voltage: 14.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT. 26 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com