PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

522437Transformer,power

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5950-00-552-0957 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-552-0957 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-552-0957. Primary manufacturer part number: 522437.
Features
  • Transformer,power — FSC 5950
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Body Height: 2.688 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Reliability Indicator: NOT ESTABLISHED
  • Terminal Type and Quantity: 5 STANDOFF, SOLDER LUG
  • Winding Operating Voltage: 66.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Body Width: 1.922 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-552-0957, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-552-0957
Primary Part Number522437
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Body Height2.688 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity5 STANDOFF, SOLDER LUG
Winding Operating Voltage66.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Body Width1.922 INCHES NOMINAL IN
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Body Length2.297 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.531 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Operating Current17.8 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Inclosure TypeHERMETICALLY SEALED
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5330-00-118-272042220 INTERCHANGEABLE
Gasket
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5133-00-227-5988 INTERCHANGEABLE
Drill,twist
3455-00-618-6007 INTERCHANGEABLE
Cutter,milling,end
2940-01-041-713442220 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
1680-01-167-4278422-20 INTERCHANGEABLE
Seat,aircraft
Sicma Aero Seat Services Inc
3020-01-294-0468 INTERCHANGEABLE
Sprocket Wheel
5310-01-388-0472N42220 INTERCHANGEABLE
Nut,plain,hexagon
Leslie Controls, Inc. Dba Leslie Controls Inc
5985-01-397-199942220 INTERCHANGEABLE
Bnc Terminator
The Dal Electronics Company Dba Dalco Electronics
6750-01-418-1897 INTERCHANGEABLE
Fixing Bath,photographic
Cross-Reference Index
Part NumberManufacturer
42220 Freed Transformer Co (USA)
151C288 General Electric Co Specialty Transformer Dept (USA)
81G13 General Electric Co Specialty Transformer Dept (USA)
522437 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5330-00-118-2720INTERCHANGEABLE
GASKET
42220
5133-00-227-5988INTERCHANGEABLE
DRILL,TWIST
3455-00-618-6007INTERCHANGEABLE
CUTTER,MILLING,END
2940-01-041-7134INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
42220
1680-01-167-4278INTERCHANGEABLE
SEAT,AIRCRAFT
422-20
3020-01-294-0468INTERCHANGEABLE
SPROCKET WHEEL
5310-01-388-0472INTERCHANGEABLE
NUT,PLAIN,HEXAGON
N42220
5985-01-397-1999INTERCHANGEABLE
BNC TERMINATOR
42220
6750-01-418-1897INTERCHANGEABLE
FIXING BATH,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 5950-00-552-0957?

NSN 5950-00-552-0957 is a Transformer,power, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-552-0957?

NSN 5950-00-552-0957 has 4 cross-referenced part numbers: 42220 (Freed Transformer Co), 151C288 (General Electric Co Specialty Transformer Dept), 81G13 (General Electric Co Specialty Transformer Dept), 522437 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5950-00-552-0957?

There are 9 known substitutes for 5950-00-552-0957: 5330-00-118-2720, 5133-00-227-5988, 3455-00-618-6007 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 522437?

Key specifications for 522437: Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Body Height: 2.688 INCHES NOMINAL IN; Center to Center Distance Between Mounting Facilities Parallel to Length: 1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Reliability Indicator: NOT ESTABLISHED. 19 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