PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

19935Transformer,power

Freed Transformer Co · NSN 5950-00-645-5311 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-5311 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-5311. Primary manufacturer part number: 19935.
Features
  • Transformer,power — FSC 5950
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Body Length: 2.250 INCHES NOMINAL IN
  • Reliability Indicator: NOT ESTABLISHED
  • Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN
  • Body Width: 2.125 INCHES NOMINAL IN
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Winding Operating Current: 125.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-645-5311, 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: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-645-5311
Primary Part Number19935
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusCANCELLED
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Body Length2.250 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Body Width2.125 INCHES NOMINAL IN
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Current125.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Winding Operating Voltage220.00 AC VOLTS NOMINAL AND 700.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Body Height3.250 INCHES NOMINAL IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Inclosure TypeHERMETICALLY SEALED
Center to Center Distance Between Mounting Facilities Parallel to Width2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Terminal Type and Quantity6 STANDOFF INSULATOR
Center to Center Distance Between Mounting Facilities Parallel to Length1.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5305-00-874-750819935 INTERCHANGEABLE
Screw,special
Avox Systems Inc Dba Avox Systems Inc
2815-01-020-7125ZZ90005 INTERCHANGEABLE
Connecting Rod,piston
Perkins Engines Inc
4940-01-171-222919935 INTERCHANGEABLE
Blast Cleaning Cabinet
Clemco Industries Corp. Dba Clemco Industries Corp Div Clemco
5935-01-313-716619935 INTERCHANGEABLE
Connector,receptacle,electrical
Times Microwave Systems, Inc Dba Times Microwave Systems Inc Div Times Microwave Systems
5306-01-556-643919935 INTERCHANGEABLE
Bolt,machine
Fastenal Company Dba Fastenal Co
4920-01-655-183319935 INTERCHANGEABLE
Test Stand,hydraulic System Comp
Testek Llc Dba Testek Solutions
Cross-Reference Index
Part NumberManufacturer
34-457A Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
19935 PRIMARY Freed Transformer Co (USA)
Related Parts
5305-00-874-7508INTERCHANGEABLE
SCREW,SPECIAL
19935
2815-01-020-7125INTERCHANGEABLE
CONNECTING ROD,PISTON
ZZ90005
4940-01-171-2229INTERCHANGEABLE
BLAST CLEANING CABINET
19935
5935-01-313-7166INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
19935
5306-01-556-6439INTERCHANGEABLE
BOLT,MACHINE
19935
4920-01-655-1833INTERCHANGEABLE
TEST STAND,HYDRAULIC SYSTEM COMP
19935

Frequently Asked Questions

What is NSN 5950-00-645-5311?

NSN 5950-00-645-5311 is a Transformer,power, manufactured by Freed Transformer Co, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-645-5311?

NSN 5950-00-645-5311 has 2 cross-referenced part numbers: 34-457A (Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems), 19935 (Freed Transformer Co).

What NSN replaces 5950-00-645-5311?

There are 6 known substitutes for 5950-00-645-5311: 5305-00-874-7508, 2815-01-020-7125, 4940-01-171-2229 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 19935?

Key specifications for 19935: Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Body Length: 2.250 INCHES NOMINAL IN; Reliability Indicator: NOT ESTABLISHED; Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-645-5311 still in active supply?

NSN 5950-00-645-5311 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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