PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50203Transformer,power

Trio Laboratories Inc · NSN 5950-00-146-4812 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-146-4812 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-146-4812. Primary manufacturer part number: 50203.
Features
  • Transformer,power — FSC 5950
  • Body Length: 0.950 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 56 SINGLE GROUP
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Winding Operating Current: 500.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT ALL SECONDARY
  • Terminal Type and Quantity: 9 SOLDER STUD
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Winding Operating Voltage: 260.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-146-4812, 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 Trio Laboratories Inc. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-146-4812
Primary Part Number50203
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerTrio Laboratories Inc
StatusACTIVE
Body Length0.950 INCHES NOMINAL IN
Thread Quantity Per Inch56 SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Operating Current500.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT ALL SECONDARY
Terminal Type and Quantity9 SOLDER STUD
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage260.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Operating Voltage30.20 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Body Height0.810 INCHES NOMINAL IN
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Inclosure TypeFULLY INCLOSED
Frequency Rating10.0 KILOHERTZ NOMINAL SINGLE COMPONENT
Body Width0.900 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length0.600 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Nominal Thread Size0.086 INCHES SINGLE GROUP IN
Reliability IndicatorNOT ESTABLISHED
Center to Center Distance Between Mounting Facilities Parallel to Width0.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Facility Quantity4 SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6615-00-020-6810 INTERCHANGEABLE
Tear Strip,gyro
2915-00-115-957160275 INTERCHANGEABLE
Control,pilot,fuel
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
5930-00-132-828516024 INTERCHANGEABLE
Switch,push-Pull
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
5365-00-213-9301 INTERCHANGEABLE
Spacer,ring
2915-00-326-656623694 INTERCHANGEABLE
Seat,valve,fuel Pum
Triumph Engine Control Systems Llc
5935-00-411-5199J72 INTERCHANGEABLE
Connector,receptacle,electrical
Trompeter Electronics, Inc.
5930-00-848-129423694 INTERCHANGEABLE
Switch,electrical
Setra Systems, Inc. Dba Gems Sensors
5945-00-868-0351 INTERCHANGEABLE
Relay,motor Driven
5360-00-981-0169 INTERCHANGEABLE
Spring,helical,compression
5935-00-998-8509QB400722-1 INTERCHANGEABLE
Connector,receptacle,electrical
Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div
Cross-Reference Index
Part NumberManufacturer
50203 Trio Laboratories Inc (USA)
23694 Trio Laboratories Inc (USA)
Related Parts
6615-00-020-6810INTERCHANGEABLE
TEAR STRIP,GYRO
2915-00-115-9571INTERCHANGEABLE
CONTROL,PILOT,FUEL
60275
5930-00-132-8285INTERCHANGEABLE
SWITCH,PUSH-PULL
16024
5365-00-213-9301INTERCHANGEABLE
SPACER,RING
2915-00-326-6566INTERCHANGEABLE
SEAT,VALVE,FUEL PUM
23694
5935-00-411-5199INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
J72
5930-00-848-1294INTERCHANGEABLE
SWITCH,ELECTRICAL
23694
5945-00-868-0351INTERCHANGEABLE
RELAY,MOTOR DRIVEN
5360-00-981-0169INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5935-00-998-8509INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
QB400722-1
2920-01-025-7693INTERCHANGEABLE
STARTER,ENGINE,ELECTRICAL
3510-01-173-7896INTERCHANGEABLE
CHASSIS,WASHING MACHINE

Frequently Asked Questions

What is NSN 5950-00-146-4812?

NSN 5950-00-146-4812 is a Transformer,power, manufactured by Trio Laboratories Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-146-4812?

NSN 5950-00-146-4812 has 2 cross-referenced part numbers: 50203 (Trio Laboratories Inc), 23694 (Trio Laboratories Inc).

What NSN replaces 5950-00-146-4812?

There are 12 known substitutes for 5950-00-146-4812: 6615-00-020-6810, 2915-00-115-9571, 5930-00-132-8285 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50203?

Key specifications for 50203: Body Length: 0.950 INCHES NOMINAL IN; Thread Quantity Per Inch: 56 SINGLE GROUP; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Winding Operating Current: 500.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT ALL SECONDARY. 19 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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