PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

283143-1Transformer,power

Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix · NSN 5950-00-056-4203 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-056-4203 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-056-4203. Primary manufacturer part number: 283143-1.
Features
  • Transformer,power — FSC 5950
  • Winding Operating Current: 40.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Winding Shielding Method: EXTERNAL INCLOSURE SINGLE COMPONENT
  • Winding Operating Voltage: 52.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Frequency Rating: 50.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-056-4203, 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 Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix. Government technical data includes 18 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-056-4203
Primary Part Number283143-1
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerHoneywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
StatusCANCELLED
Winding Operating Current40.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Shielding MethodEXTERNAL INCLOSURE SINGLE COMPONENT
Winding Operating Voltage52.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Mounting Facility Quantity4 SINGLE GROUP
Frequency Rating50.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM SINGLE COMPONENT
Winding Operating Voltage108.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 124.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Height5.500 INCHES NOMINAL IN
Body Length4.020 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width2.760 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity7 THREADED STUD
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Mounting Hole Diameter0.200 INCHES NOMINAL SINGLE GROUP IN
Reliability IndicatorNOT ESTABLISHED
Body Width3.520 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length3.260 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inclosure TypeFULLY INCLOSED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
3110-00-198-2280 INTERCHANGEABLE
Cone and Rollers,tapered Roller
5950-00-645-722442687 INTERCHANGEABLE
Transformer,power Autotransforme
Freed Transformer Co
5962-01-178-248242687 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
5330-01-197-1120TP4140-8PC9 INTERCHANGEABLE
Retainer,packing
Hydrasearch Company, Llc
6150-01-395-2568283143-1 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Drs Signal Solutions, Inc.
5365-01-615-527142687-01 INTERCHANGEABLE
Shim Set
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Cross-Reference Index
Part NumberManufacturer
283143-1 Magnetek Inc Lighting Products Group (USA)
283143-1 Magnetek Inc Huntington Div (USA)
283143-1 Freed Transformer Co (USA)
42687 Coast/advanced Chip Magnetics, Inc. (USA)
283143-1 Amfac Distribution Corp Amfac Supply Co Amfac Fluid Power (USA)
283143-1 PRIMARY Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix (USA)
Related Parts
3110-00-198-2280INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
5950-00-645-7224INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
42687
5962-01-178-2482INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
42687
5330-01-197-1120INTERCHANGEABLE
RETAINER,PACKING
TP4140-8PC9
6150-01-395-2568INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
283143-1
5365-01-615-5271INTERCHANGEABLE
SHIM SET
42687-01

Frequently Asked Questions

What is NSN 5950-00-056-4203?

NSN 5950-00-056-4203 is a Transformer,power, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-056-4203?

NSN 5950-00-056-4203 has 6 cross-referenced part numbers: 283143-1 (Magnetek Inc Lighting Products Group), 283143-1 (Magnetek Inc Huntington Div), 283143-1 (Freed Transformer Co), 42687 (Coast/advanced Chip Magnetics, Inc.), 283143-1 (Amfac Distribution Corp Amfac Supply Co Amfac Fluid Power) and 1 more.

What NSN replaces 5950-00-056-4203?

There are 6 known substitutes for 5950-00-056-4203: 3110-00-198-2280, 5950-00-645-7224, 5962-01-178-2482 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 283143-1?

Key specifications for 283143-1: Winding Operating Current: 40.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT; Winding Shielding Method: EXTERNAL INCLOSURE SINGLE COMPONENT. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-056-4203 still in active supply?

NSN 5950-00-056-4203 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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