PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

400330Transformer,power

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5950-00-645-8931 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-8931 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-8931. Primary manufacturer part number: 400330.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Body Width: 2.250 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-645-8931, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-645-8931
Primary Part Number400330
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Body Width2.250 INCHES NOMINAL IN
Thread Quantity Per Inch32 SINGLE GROUP
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width1.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Winding Operating Current5.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
Winding Operating Voltage225.00 AC VOLTS NOMINAL AND 675.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Body Height4.000 INCHES NOMINAL IN
Body Length2.125 INCHES NOMINAL IN
Winding Operating Voltage600.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Terminal Type and Quantity9 TAB, SOLDER LUG
Nominal Thread Size0.164 INCHES SINGLE GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5330-00-599-95463871 .250 INTERCHANGEABLE
Packing Material
Defense Maritime Solutions, Inc.
5930-00-811-9729 INTERCHANGEABLE
Switch,toggle
4810-00-918-25929776509-10 INTERCHANGEABLE
Parts Kit,butterfly Valve
Triumph Thermal Systems - Maryland, Inc.
5330-01-283-0554400331 INTERCHANGEABLE
Packing Material
Hunt Valve Company, Inc.
2520-01-352-1399400330 INTERCHANGEABLE
Plate,torque Converter
Wiggins Lift Co Inc
5330-01-360-6375 INTERCHANGEABLE
Packing Material
5330-01-367-6801 INTERCHANGEABLE
Seal,nonmetallic Round Section
5999-01-614-3554400330 INTERCHANGEABLE
Contact Assembly,electrical
Stinar, Llc
Cross-Reference Index
Part NumberManufacturer
400330 Freed Transformer Co (USA)
400330 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5330-00-599-9546INTERCHANGEABLE
PACKING MATERIAL
3871 .250
5930-00-811-9729INTERCHANGEABLE
SWITCH,TOGGLE
4810-00-918-2592INTERCHANGEABLE
PARTS KIT,BUTTERFLY VALVE
9776509-10
5330-01-283-0554INTERCHANGEABLE
PACKING MATERIAL
400331
2520-01-352-1399INTERCHANGEABLE
PLATE,TORQUE CONVERTER
400330
5330-01-360-6375INTERCHANGEABLE
PACKING MATERIAL
5330-01-367-6801INTERCHANGEABLE
SEAL,NONMETALLIC ROUND SECTION
5999-01-614-3554INTERCHANGEABLE
CONTACT ASSEMBLY,ELECTRICAL
400330

Frequently Asked Questions

What is NSN 5950-00-645-8931?

NSN 5950-00-645-8931 is a Transformer,power, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-645-8931?

NSN 5950-00-645-8931 has 2 cross-referenced part numbers: 400330 (Freed Transformer Co), 400330 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5950-00-645-8931?

There are 8 known substitutes for 5950-00-645-8931: 5330-00-599-9546, 5930-00-811-9729, 4810-00-918-2592 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 400330?

Key specifications for 400330: Reliability Indicator: NOT ESTABLISHED; Mounting Method: THREADED STUD(S) SINGLE GROUP; Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP. 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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