PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L640A15Transformer,power

Aq Transformer Solutions Inc. · NSN 5950-01-325-9452 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-325-9452 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-325-9452. Primary manufacturer part number: L640A15.
Features
  • Transformer,power — FSC 5950
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 8.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP
  • Mounting Hole Diameter: 0.375 INCHES NOMINAL SINGLE GROUP IN
  • Inclosure Type: HERMETICALLY SEALED
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 6.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Frequency Rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT
  • Winding Function and Quantity: 2 PRIMARY AND 2 SECONDARY 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 5950-01-325-9452, 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 Aq Transformer Solutions Inc.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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: Active.

Technical Specifications
ParameterValue
NSN5950-01-325-9452
Primary Part NumberL640A15
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerAq Transformer Solutions Inc.
StatusACTIVE
Center to Center Distance Between Mounting Facilities Parallel to Width8.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Mounting Hole Diameter0.375 INCHES NOMINAL SINGLE GROUP IN
Inclosure TypeHERMETICALLY SEALED
Center to Center Distance Between Mounting Facilities Parallel to Length6.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Function and Quantity2 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Mounting Facility Quantity4 SINGLE GROUP
Nondefinitive Spec/std Data4 GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5962-00-007-1012 INTERCHANGEABLE
Microcircuit,digital
4510-00-256-263925734 INTERCHANGEABLE
Spout,diverter,bath Tub
Chatham Brass Co Inc
5950-00-262-2249 INTERCHANGEABLE
Transformer,power
5307-00-317-3037 INTERCHANGEABLE
Stud,plain
5950-00-678-4045 INTERCHANGEABLE
Transformer,power
5950-00-683-0510 INTERCHANGEABLE
Transformer,power
5950-00-892-8861 INTERCHANGEABLE
Transformer,power
5950-00-973-2112221-001-155 INTERCHANGEABLE
Transformer,power
Power Paragon, Inc. Dba Power Magnetics Div Power Magnetics
5895-01-111-97405469520 INTERCHANGEABLE
Monitor,radio Frequency
Naval Sea Systems Command
5950-01-142-5372 INTERCHANGEABLE
Transformer,power
Cross-Reference Index
Part NumberManufacturer
L640A15 PRIMARY Aq Transformer Solutions Inc. (USA)
MIL-T-17221 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILT17221 25KVA 450/ Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
25734 Power Paragon, Inc. Dba Power Magnetics Div Power Magnetics (USA)
Related Parts
5962-00-007-1012INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
4510-00-256-2639INTERCHANGEABLE
SPOUT,DIVERTER,BATH TUB
25734
5950-00-262-2249INTERCHANGEABLE
TRANSFORMER,POWER
5307-00-317-3037INTERCHANGEABLE
STUD,PLAIN
5950-00-678-4045INTERCHANGEABLE
TRANSFORMER,POWER
5950-00-683-0510INTERCHANGEABLE
TRANSFORMER,POWER
5950-00-892-8861INTERCHANGEABLE
TRANSFORMER,POWER
5950-00-973-2112INTERCHANGEABLE
TRANSFORMER,POWER
221-001-155
5895-01-111-9740INTERCHANGEABLE
MONITOR,RADIO FREQUENCY
5469520
5950-01-142-5372INTERCHANGEABLE
TRANSFORMER,POWER
5950-01-200-2783INTERCHANGEABLE
TRANSFORMER,POWER
5950-01-382-5593INTERCHANGEABLE
TRANSFORMER,POWER

Frequently Asked Questions

What is NSN 5950-01-325-9452?

NSN 5950-01-325-9452 is a Transformer,power, manufactured by Aq Transformer Solutions Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-325-9452?

NSN 5950-01-325-9452 has 4 cross-referenced part numbers: L640A15 (Aq Transformer Solutions Inc.), MIL-T-17221 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILT17221 25KVA 450/ (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 25734 (Power Paragon, Inc. Dba Power Magnetics Div Power Magnetics).

What NSN replaces 5950-01-325-9452?

There are 12 known substitutes for 5950-01-325-9452: 5962-00-007-1012, 4510-00-256-2639, 5950-00-262-2249 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of L640A15?

Key specifications for L640A15: Center to Center Distance Between Mounting Facilities Parallel to Width: 8.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP; Mounting Hole Diameter: 0.375 INCHES NOMINAL SINGLE GROUP IN; Inclosure Type: HERMETICALLY SEALED. 10 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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