PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3438Transformer,power

Precision Electronics, Inc · NSN 5950-00-504-7381 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-504-7381 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-504-7381. Primary manufacturer part number: 3438.
Features
  • Transformer,power — FSC 5950
  • Body Length: 7.000 INCHES NOMINAL IN
  • Body Width: 4.750 INCHES NOMINAL IN
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Reliability Indicator: NOT ESTABLISHED
  • Inclosure Type: FULLY INCLOSED
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Nominal Thread Size: 0.190 INCHES SINGLE 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 5950-00-504-7381, 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 Precision Electronics, Inc. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-504-7381
Primary Part Number3438
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerPrecision Electronics, Inc
StatusCANCELLED
Body Length7.000 INCHES NOMINAL IN
Body Width4.750 INCHES NOMINAL IN
Mounting Facility Quantity4 SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeFULLY INCLOSED
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Nominal Thread Size0.190 INCHES SINGLE GROUP IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Winding Operating Voltage5.00 AC VOLTS NOMINAL AND 10.00 AC VOLTS NOMINAL AND 15.00 AC VOLTS NOMINAL AND 162.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Winding Operating Voltage95.00 AC VOLTS NOMINAL AND 105.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 125.00 AC VOLTS NOMINAL AND 190.00 AC VOLTS NOMINAL AND 210.00 AC VOLTS NOMINAL AND 230.00 AC VOLTS NOMINAL AND 250.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Center to Center Distance Between Mounting Facilities Parallel to Width3.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Thread Series DesignatorUNF SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Winding Operating Current550.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Body Height5.875 INCHES NOMINAL IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length6.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO CORE AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Terminal Type and Quantity15 STANDOFF INSULATOR
Frequency Rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2825-00-146-0129D15-3950PC429T0431 INTERCHANGEABLE
Bucket Assembly
Northrop Grumman Systems Corporation Div Marine Systems
5120-00-242-3268034C INTERCHANGEABLE
Screwdriver,offset
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5310-00-291-88933438 INTERCHANGEABLE
Washer,flat
Triumph Engine Control Systems Llc
5315-00-341-88453438 INTERCHANGEABLE
Pin,drive,power Actuated
Illinois Tool Works Inc
5360-00-366-2426525125 INTERCHANGEABLE
Spring,helical
Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
2990-00-374-8564T-3438 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
3120-00-383-855617557 INTERCHANGEABLE
Bearing,sleeve
Mitsubishi Caterpillar Forklift America, Inc
2520-00-405-1728D3-1011C INTERCHANGEABLE
Shifter Collar
Astec Industries Inc Div Astec Ind.
5998-00-462-1922RA10 INTERCHANGEABLE
Circuit Card Assembly
Bae Systems Information and Electronic Systems Integration Inc.
5120-00-511-6065 INTERCHANGEABLE
Cable Puller
Cross-Reference Index
Part NumberManufacturer
RA10 Varityper Inc (USA)
SCD14030 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
3438 PRIMARY Precision Electronics, Inc (USA)
Related Parts
2825-00-146-0129INTERCHANGEABLE
BUCKET ASSEMBLY
D15-3950PC429T0431
5120-00-242-3268INTERCHANGEABLE
SCREWDRIVER,OFFSET
034C
5310-00-291-8893INTERCHANGEABLE
WASHER,FLAT
3438
5315-00-341-8845INTERCHANGEABLE
PIN,DRIVE,POWER ACTUATED
3438
5360-00-366-2426INTERCHANGEABLE
SPRING,HELICAL
525125
2990-00-374-8564INTERCHANGEABLE
MUFFLER,EXHAUST
T-3438
3120-00-383-8556INTERCHANGEABLE
BEARING,SLEEVE
17557
2520-00-405-1728INTERCHANGEABLE
SHIFTER COLLAR
D3-1011C
5998-00-462-1922INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
RA10
5120-00-511-6065INTERCHANGEABLE
CABLE PULLER
5310-00-805-6890INTERCHANGEABLE
WASHER,FLAT
7610-01-123-3225INTERCHANGEABLE
SHEET,TECHNICAL
3438

Frequently Asked Questions

What is NSN 5950-00-504-7381?

NSN 5950-00-504-7381 is a Transformer,power, manufactured by Precision Electronics, Inc, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-504-7381?

NSN 5950-00-504-7381 has 3 cross-referenced part numbers: RA10 (Varityper Inc), SCD14030 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 3438 (Precision Electronics, Inc).

What NSN replaces 5950-00-504-7381?

There are 12 known substitutes for 5950-00-504-7381: 2825-00-146-0129, 5120-00-242-3268, 5310-00-291-8893 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3438?

Key specifications for 3438: Body Length: 7.000 INCHES NOMINAL IN; Body Width: 4.750 INCHES NOMINAL IN; Mounting Facility Quantity: 4 SINGLE GROUP; Reliability Indicator: NOT ESTABLISHED. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-504-7381 still in active supply?

NSN 5950-00-504-7381 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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