PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42687Transformer,power Autotransforme

Freed Transformer Co · NSN 5950-00-645-7224 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-7224 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-7224. Primary manufacturer part number: 42687.
Features
  • Transformer,power Autotransforme — FSC 5950
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Terminal Type and Quantity: 3 SOLDER STUD
  • Winding Function and Quantity: 1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT
  • Reliability Indicator: NOT ESTABLISHED
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Body Height: 2.812 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power Autotransforme, cataloged under National Stock Number 5950-00-645-7224, 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 19 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-645-7224
Primary Part Number42687
Item NameTransformer,power Autotransforme
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Thread Quantity Per Inch32 SINGLE GROUP
Terminal Type and Quantity3 SOLDER STUD
Winding Function and Quantity1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Center to Center Distance Between Mounting Facilities Parallel to Length2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Body Height2.812 INCHES NOMINAL IN
Inclosure TypeHERMETICALLY SEALED
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Current1.8 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Center to Center Distance Between Mounting Facilities Parallel to Width1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Winding Operating Voltage28.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Body Width2.375 INCHES NOMINAL IN
Body Length2.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5950-00-056-4203283143-1 INTERCHANGEABLE
Transformer,power
Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
3110-00-198-2280 INTERCHANGEABLE
Cone and Rollers,tapered Roller
5905-00-443-7796 INTERCHANGEABLE
Resistor,fixed,composition
5962-01-178-248242687 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
5330-01-197-1120TP4140-8PC9 INTERCHANGEABLE
Retainer,packing
Hydrasearch Company, Llc
5365-01-615-527142687-01 INTERCHANGEABLE
Shim Set
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Cross-Reference Index
Part NumberManufacturer
42687 PRIMARY Freed Transformer Co (USA)
A8293 Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc. (USA)
Related Parts
5950-00-056-4203INTERCHANGEABLE
TRANSFORMER,POWER
283143-1
3110-00-198-2280INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
5905-00-443-7796INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5962-01-178-2482INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
42687
5330-01-197-1120INTERCHANGEABLE
RETAINER,PACKING
TP4140-8PC9
5365-01-615-5271INTERCHANGEABLE
SHIM SET
42687-01

Frequently Asked Questions

What is NSN 5950-00-645-7224?

NSN 5950-00-645-7224 is a Transformer,power Autotransforme, manufactured by Freed Transformer Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-645-7224?

NSN 5950-00-645-7224 has 2 cross-referenced part numbers: 42687 (Freed Transformer Co), A8293 (Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc.).

What NSN replaces 5950-00-645-7224?

There are 6 known substitutes for 5950-00-645-7224: 5950-00-056-4203, 3110-00-198-2280, 5905-00-443-7796 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 42687?

Key specifications for 42687: Thread Quantity Per Inch: 32 SINGLE GROUP; Terminal Type and Quantity: 3 SOLDER STUD; Overall Length: 2.750 INCHES NOMINAL IN; Winding Function and Quantity: 1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT. 23 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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