PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3281424PC56Transformer,power

Naval Ship Systems Command · NSN 5950-00-645-8685 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-8685 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-8685. Primary manufacturer part number: 3281424PC56.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Frequency Rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.859 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Winding Power Rating: 20.0 VOLTS-AMPERES SINGLE COMPONENT SINGLE SECONDARY
  • 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 5950-00-645-8685, 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 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-645-8685
Primary Part Number3281424PC56
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width1.859 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Thread Quantity Per Inch32 SINGLE GROUP
Winding Power Rating20.0 VOLTS-AMPERES SINGLE COMPONENT SINGLE SECONDARY
Mounting Facility Quantity4 SINGLE GROUP
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO CORE AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Nominal Thread Size0.164 INCHES SINGLE GROUP IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Body Width2.594 INCHES MINIMUM AND 2.656 INCHES MAXIMUM IN
Winding Operating Voltage28.00 AC VOLTS NOMINAL AND 32.00 AC VOLTS NOMINAL AND 36.00 AC VOLTS NOMINAL AND 41.00 AC VOLTS NOMINAL AND 47.00 AC VOLTS NOMINAL AND 55.00 AC VOLTS NOMINAL AND 64.00 AC VOLTS NOMINAL AND 73.00 AC VOLTS NOMINAL AND 84.00 AC VOLTS NOMINAL AND 98.00 AC VOLTS NOMINAL AND 112.00 AC VOLTS NOMINAL AND 127.00 AC VOLTS NOMINAL AND 146.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Winding Operating Voltage115.00 AC VOLTS NOMINAL AND 146.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Body Height4.250 INCHES MAXIMUM IN
Center to Center Distance Between Mounting Facilities Parallel to Length2.296 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Length3.031 INCHES MINIMUM AND 3.093 INCHES MAXIMUM IN
Terminal Type and Quantity18 STANDOFF, SOLDER LUG
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4330-00-005-7168M2532 INTERCHANGEABLE
Filter,fluid
Marvel Engineering Company Inc
3020-00-862-6738H7-32 INTERCHANGEABLE
Gear,spur
Roller Bearing Co of America, Inc Div Pic Design
5910-01-310-8533KKSF37U205QPI INTERCHANGEABLE
Capacitor,fixed,metallized,paper
Cornell-Dubilier Electronics, Inc.
Cross-Reference Index
Part NumberManufacturer
M2532 Microtran Co Inc (USA)
3291457PC124 Naval Ship Systems Command (USA)
1675580REVAPC93 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
3281424PC56 PRIMARY Naval Ship Systems Command (USA)
1676163-2PC124 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
1675691PC56 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
1650466 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
Related Parts
4330-00-005-7168INTERCHANGEABLE
FILTER,FLUID
M2532
3020-00-862-6738INTERCHANGEABLE
GEAR,SPUR
H7-32
5910-01-310-8533INTERCHANGEABLE
CAPACITOR,FIXED,METALLIZED,PAPER
KKSF37U205QPI

Frequently Asked Questions

What is NSN 5950-00-645-8685?

NSN 5950-00-645-8685 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 5950-00-645-8685?

NSN 5950-00-645-8685 has 7 cross-referenced part numbers: M2532 (Microtran Co Inc), 3291457PC124 (Naval Ship Systems Command), 1675580REVAPC93 (Lockheed Martin Corporation Div Rms - Mitchel Field), 3281424PC56 (Naval Ship Systems Command), 1676163-2PC124 (Lockheed Martin Corporation Div Rms - Mitchel Field) and 2 more.

What NSN replaces 5950-00-645-8685?

There are 3 known substitutes for 5950-00-645-8685: 4330-00-005-7168, 3020-00-862-6738, 5910-01-310-8533. Verify interchangeability with system specifications before substitution.

What are the specifications of 3281424PC56?

Key specifications for 3281424PC56: Reliability Indicator: NOT ESTABLISHED; Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT; Frequency Rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT; Center to Center Distance Between Mounting Facilities Parallel to Width: 1.859 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN. 20 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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