PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2638528Transformer,power

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5950-00-435-8138 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-435-8138 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-435-8138. Primary manufacturer part number: 2638528.
Features
  • Transformer,power — FSC 5950
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Body Height: 2.625 INCHES NOMINAL IN
  • Body Length: 3.500 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.531 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Input-Output Phase Relationship: THREE PHASE TO THREE PHASE SINGLE COMPONENT
  • Mounting Hole Diameter: 0.254 INCHES NOMINAL SINGLE GROUP IN
  • Inclosure Type: OPEN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-435-8138, 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 11 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-435-8138
Primary Part Number2638528
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Center to Center Distance Between Mounting Facilities Parallel to Length1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Height2.625 INCHES NOMINAL IN
Body Length3.500 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.531 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Input-Output Phase RelationshipTHREE PHASE TO THREE PHASE SINGLE COMPONENT
Mounting Hole Diameter0.254 INCHES NOMINAL SINGLE GROUP IN
Inclosure TypeOPEN
Body Width1.938 INCHES NOMINAL IN
Mounting Facility Quantity4 SINGLE GROUP
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Terminal Type and Quantity17 TAB, SOLDER LUG
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
1680-00-124-96743889-1 INTERCHANGEABLE
Housing,spring,reel
Nell-Joy Industries, Inc.
5120-00-248-6662 INTERCHANGEABLE
Socket,crowfoot Wrench Head
5920-00-685-9894SFB1060-01 INTERCHANGEABLE
Fuseholder,block
Cooper Bussmann, Llc Dba Cooper Industries
5325-00-805-42557716676P17 INTERCHANGEABLE
Grommet,nonmetallic
Lockheed Martin Corporation Div Rms
5950-01-020-65681219-145 INTERCHANGEABLE
Transformer,power
Bae Systems Information and Electronic Systems Integration Inc.
6610-01-225-04133889 INTERCHANGEABLE
Mechanism Assembly
Kearflex Engineering Company
5306-01-239-25553-8-8-9 INTERCHANGEABLE
Bolt,machine
Celtech Corporation Div Use CAGE 65552 for All Orders
6220-01-433-860569188-003 INTERCHANGEABLE
Panel,indicating,light Transmitt
Control Products Corporation
Cross-Reference Index
Part NumberManufacturer
NAV0RDDWG2638528 Lct Electronics (USA)
2638528 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
3889 Control Circuits Inc (USA)
Related Parts
1680-00-124-9674INTERCHANGEABLE
HOUSING,SPRING,REEL
3889-1
5120-00-248-6662INTERCHANGEABLE
SOCKET,CROWFOOT WRENCH HEAD
5920-00-685-9894INTERCHANGEABLE
FUSEHOLDER,BLOCK
SFB1060-01
5325-00-805-4255INTERCHANGEABLE
GROMMET,NONMETALLIC
7716676P17
5950-01-020-6568INTERCHANGEABLE
TRANSFORMER,POWER
1219-145
6610-01-225-0413INTERCHANGEABLE
MECHANISM ASSEMBLY
3889
5306-01-239-2555INTERCHANGEABLE
BOLT,MACHINE
3-8-8-9
6220-01-433-8605INTERCHANGEABLE
PANEL,INDICATING,LIGHT TRANSMITT
69188-003

Frequently Asked Questions

What is NSN 5950-00-435-8138?

NSN 5950-00-435-8138 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 5950-00-435-8138?

NSN 5950-00-435-8138 has 3 cross-referenced part numbers: NAV0RDDWG2638528 (Lct Electronics), 2638528 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 3889 (Control Circuits Inc).

What NSN replaces 5950-00-435-8138?

There are 8 known substitutes for 5950-00-435-8138: 1680-00-124-9674, 5120-00-248-6662, 5920-00-685-9894 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2638528?

Key specifications for 2638528: Center to Center Distance Between Mounting Facilities Parallel to Length: 1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Body Height: 2.625 INCHES NOMINAL IN; Body Length: 3.500 INCHES NOMINAL IN; Center to Center Distance Between Mounting Facilities Parallel to Width: 1.531 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN. 11 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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