PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ST3628Transformer,power

Sterling Transformer Corp · NSN 5950-00-647-7218 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-647-7218 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-647-7218. Primary manufacturer part number: ST3628.
Features
  • Transformer,power — FSC 5950
  • Winding Operating Current: 30.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
  • Winding Operating Current: 20.0 AMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
  • Reliability Indicator: NOT ESTABLISHED
  • Terminal Type and Quantity: 9 TAB, SOLDER LUG
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Body Length: 3.875 INCHES MAXIMUM IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-647-7218, 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 Sterling Transformer Corp. Government technical data includes 21 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-647-7218
Primary Part NumberST3628
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerSterling Transformer Corp
StatusACTIVE
Winding Operating Current30.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Winding Operating Current20.0 AMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity9 TAB, SOLDER LUG
Center to Center Distance Between Mounting Facilities Parallel to Length3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Body Length3.875 INCHES MAXIMUM IN
Winding Operating Voltage5.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Winding Operating Voltage160.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Frequency Rating55.0 HERTZ MINIMUM AND 65.0 HERTZ MAXIMUM SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Winding Operating Voltage113.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Hole Diameter0.190 INCHES NOMINAL SINGLE GROUP IN
Body Width3.312 INCHES MAXIMUM IN
Mounting Facility Quantity4 SINGLE GROUP
Body Height4.188 INCHES MAXIMUM IN
Winding Operating Current8.5 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Inclosure TypeOPEN
Winding Operating Voltage6.40 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5950-00-156-0637 INTERCHANGEABLE
Transformer,power
2530-00-368-4900P81 INTERCHANGEABLE
Wheel Assembly,pneumatic Tire
Rosco Mfg Co
5340-00-677-6604939233 INTERCHANGEABLE
Plunger,detent
Tulsa Winch, Inc.
4310-00-715-567425692 INTERCHANGEABLE
Collar
Hdt Expeditionary Systems Inc
5330-00-773-1855132484 INTERCHANGEABLE
Gasket
Cummins Inc.
4330-01-488-664125692-6-4-105 INTERCHANGEABLE
Adapter,fluid Filter
Pall Aeropower Corporation
Cross-Reference Index
Part NumberManufacturer
ST3628 Sterling Transformer Corp (USA)
TR1414 Bae Systems Information and Electronic Systems Integration Inc. (USA)
25692 Freed Transformer Co (USA)
Related Parts
5950-00-156-0637INTERCHANGEABLE
TRANSFORMER,POWER
2530-00-368-4900INTERCHANGEABLE
WHEEL ASSEMBLY,PNEUMATIC TIRE
P81
5340-00-677-6604INTERCHANGEABLE
PLUNGER,DETENT
939233
4310-00-715-5674INTERCHANGEABLE
COLLAR
25692
5330-00-773-1855INTERCHANGEABLE
GASKET
132484
4330-01-488-6641INTERCHANGEABLE
ADAPTER,FLUID FILTER
25692-6-4-105

Frequently Asked Questions

What is NSN 5950-00-647-7218?

NSN 5950-00-647-7218 is a Transformer,power, manufactured by Sterling Transformer Corp, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-647-7218?

NSN 5950-00-647-7218 has 3 cross-referenced part numbers: ST3628 (Sterling Transformer Corp), TR1414 (Bae Systems Information and Electronic Systems Integration Inc.), 25692 (Freed Transformer Co).

What NSN replaces 5950-00-647-7218?

There are 6 known substitutes for 5950-00-647-7218: 5950-00-156-0637, 2530-00-368-4900, 5340-00-677-6604 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ST3628?

Key specifications for ST3628: Winding Operating Current: 30.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY; Winding Operating Current: 20.0 AMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY; Reliability Indicator: NOT ESTABLISHED; Terminal Type and Quantity: 9 TAB, SOLDER LUG. 21 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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