PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

303356Transformer,power

Naval Ship Systems Command · NSN 5950-00-199-4139 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-199-4139 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-199-4139. Primary manufacturer part number: 303356.
Features
  • Transformer,power — FSC 5950
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Inclosure Type: FULLY INCLOSED
  • Winding Operating Current: 3.0 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
  • Winding Operating Voltage: 250.00 AC VOLTS NOMINAL AND 1.20 AC KILOVOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
  • Terminal Type and Quantity: 4 TAB, SOLDER LUG AND 5 STANDOFF, THREADED STUD
  • Reliability Indicator: NOT ESTABLISHED
  • Mounting Facility Quantity: 4 SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-199-4139, 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 Naval Ship Systems Command. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-199-4139
Primary Part Number303356
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Inclosure TypeFULLY INCLOSED
Winding Operating Current3.0 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Winding Operating Voltage250.00 AC VOLTS NOMINAL AND 1.20 AC KILOVOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Terminal Type and Quantity4 TAB, SOLDER LUG AND 5 STANDOFF, THREADED STUD
Reliability IndicatorNOT ESTABLISHED
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Voltage5.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length4.562 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Height6.325 INCHES NOMINAL IN
Body Width4.812 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width4.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Operating Voltage2.50 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Body Length5.325 INCHES NOMINAL IN
Winding Operating Current200.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Winding Operating Current5.0 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-678-3225 INTERCHANGEABLE
Seal,plain
5325-01-201-3688303356 INTERCHANGEABLE
Ring,retaining
Calgon Carbon Uv Technologies Llc Dba Hyde Marine
Cross-Reference Index
Part NumberManufacturer
303356 PRIMARY Naval Ship Systems Command (USA)
Related Parts
5330-00-678-3225INTERCHANGEABLE
SEAL,PLAIN
5325-01-201-3688INTERCHANGEABLE
RING,RETAINING
303356

Frequently Asked Questions

What is NSN 5950-00-199-4139?

NSN 5950-00-199-4139 is a Transformer,power, manufactured by Naval Ship Systems Command, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-199-4139?

NSN 5950-00-199-4139 has 1 cross-referenced part number: 303356 (Naval Ship Systems Command).

What NSN replaces 5950-00-199-4139?

There are 2 known substitutes for 5950-00-199-4139: 5330-00-678-3225, 5325-01-201-3688. Verify interchangeability with system specifications before substitution.

What are the specifications of 303356?

Key specifications for 303356: Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Inclosure Type: FULLY INCLOSED; Winding Operating Current: 3.0 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY; Winding Operating Voltage: 250.00 AC VOLTS NOMINAL AND 1.20 AC KILOVOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY. 21 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