PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43443Transformer,power

Freed Transformer Co · NSN 5950-00-691-0047 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-691-0047 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-691-0047. Primary manufacturer part number: 43443.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Winding Operating Voltage: 190.00 AC VOLTS NOMINAL AND 200.00 AC VOLTS NOMINAL AND 210.00 AC VOLTS NOMINAL AND 220.00 AC VOLTS NOMINAL AND 230.00 AC VOLTS NOMINAL AND 240.00 AC VOLTS NOMINAL AND 250.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Body Height: 7.625 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 4.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-691-0047, 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 20 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-691-0047
Primary Part Number43443
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Operating Voltage190.00 AC VOLTS NOMINAL AND 200.00 AC VOLTS NOMINAL AND 210.00 AC VOLTS NOMINAL AND 220.00 AC VOLTS NOMINAL AND 230.00 AC VOLTS NOMINAL AND 240.00 AC VOLTS NOMINAL AND 250.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Body Height7.625 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width4.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE SINGLE COMPONENT
Body Width5.312 INCHES NOMINAL IN
Terminal Type and Quantity9 STANDOFF, SOLDER LUG AND 2 STANDOFF, THREADED STUD
Winding Operating Current75.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Thread Quantity Per Inch20 SINGLE GROUP
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Body Length6.125 INCHES NOMINAL IN
Winding Operating Voltage8.50 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Frequency Rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
Nominal Thread Size0.250 INCHES SINGLE GROUP IN
Mounting Facility Quantity4 SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length4.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5310-00-118-934943443 INTERCHANGEABLE
Washer,key
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
4730-00-287-481450607DX INTERCHANGEABLE
Elbow,pipe to Tube
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
5310-00-831-233243443 INTERCHANGEABLE
Washer,flat
Triumph Engine Control Systems Llc
6240-01-345-2248F90T17/CW/SS INTERCHANGEABLE
Lamp,fluorescent
Gte Products Corp Sylvania Miniature Lighting Div
5136-01-625-499743443 INTERCHANGEABLE
Tap,thread Cutting
Tapco Cutting Tools Inc
Cross-Reference Index
Part NumberManufacturer
TF197 The Technical Material Corporation Dba T M C (USA)
43443 PRIMARY Freed Transformer Co (USA)
Related Parts
5310-00-118-9349INTERCHANGEABLE
WASHER,KEY
43443
4730-00-287-4814INTERCHANGEABLE
ELBOW,PIPE TO TUBE
50607DX
5310-00-831-2332INTERCHANGEABLE
WASHER,FLAT
43443
6240-01-345-2248INTERCHANGEABLE
LAMP,FLUORESCENT
F90T17/CW/SS
5136-01-625-4997INTERCHANGEABLE
TAP,THREAD CUTTING
43443

Frequently Asked Questions

What is NSN 5950-00-691-0047?

NSN 5950-00-691-0047 is a Transformer,power, manufactured by Freed Transformer Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-691-0047?

NSN 5950-00-691-0047 has 2 cross-referenced part numbers: TF197 (The Technical Material Corporation Dba T M C), 43443 (Freed Transformer Co).

What NSN replaces 5950-00-691-0047?

There are 5 known substitutes for 5950-00-691-0047: 5310-00-118-9349, 4730-00-287-4814, 5310-00-831-2332 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 43443?

Key specifications for 43443: Reliability Indicator: NOT ESTABLISHED; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT; Winding Operating Voltage: 190.00 AC VOLTS NOMINAL AND 200.00 AC VOLTS NOMINAL AND 210.00 AC VOLTS NOMINAL AND 220.00 AC VOLTS NOMINAL AND 230.00 AC VOLTS NOMINAL AND 240.00 AC VOLTS NOMINAL AND 250.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY. 21 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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