PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12126Transformer,power

Standex Electronics, Inc. · NSN 5950-01-028-3415 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-028-3415 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-028-3415. Primary manufacturer part number: 12126.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Body Width: 2.063 INCHES MAXIMUM IN
  • Mounting Method: THREADED HOLE(S) SINGLE GROUP
  • Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Body Length: 2.500 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 5950-01-028-3415, 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 Standex Electronics, Inc.. Government technical data includes 15 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-028-3415
Primary Part Number12126
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerStandex Electronics, Inc.
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Body Width2.063 INCHES MAXIMUM IN
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length1.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Length2.500 INCHES MAXIMUM IN
Terminal Type and Quantity10 PIN
Mounting Facility Quantity4 SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Function and Quantity2 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Body Height2.313 INCHES MAXIMUM IN
Inclosure TypeFULLY INCLOSED
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6685-00-252-302312126 INTERCHANGEABLE
Gage,compound Pressure-Vacuum,di
John Reiner & Co. Inc.
3040-00-448-073812126 INTERCHANGEABLE
Coupling,adjustable
Cummins Power Generation Inc.
3040-00-822-5145 INTERCHANGEABLE
Disc,brake
5355-01-086-7911RB-67-3 SK-7-M INTERCHANGEABLE
Knob
Rogan Corporation
6540-01-139-761112126 INTERCHANGEABLE
Occluder,eye
Gulden Ophthalmics Inc.
3455-01-219-435212126 INTERCHANGEABLE
Trepanning Tool,machine
Hougen Manufacturing, Inc
5325-01-424-661912126 INTERCHANGEABLE
Insert,panel Fastener
Spx Fluid Power
5915-01-474-6191 INTERCHANGEABLE
Filter,radio Frequency Interfere
5810-01-549-054712126 INTERCHANGEABLE
Plug,code
Teledyne Flir Unmanned Ground Systems, Inc
5120-01-578-3610 INTERCHANGEABLE
Socket,socket Wrench
Cross-Reference Index
Part NumberManufacturer
338497 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
12126 PRIMARY Standex Electronics, Inc. (USA)
Related Parts
6685-00-252-3023INTERCHANGEABLE
GAGE,COMPOUND PRESSURE-VACUUM,DI
12126
3040-00-448-0738INTERCHANGEABLE
COUPLING,ADJUSTABLE
12126
3040-00-822-5145INTERCHANGEABLE
DISC,BRAKE
5355-01-086-7911INTERCHANGEABLE
KNOB
RB-67-3 SK-7-M
6540-01-139-7611INTERCHANGEABLE
OCCLUDER,EYE
12126
3455-01-219-4352INTERCHANGEABLE
TREPANNING TOOL,MACHINE
12126
5325-01-424-6619INTERCHANGEABLE
INSERT,PANEL FASTENER
12126
5915-01-474-6191INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
5810-01-549-0547INTERCHANGEABLE
PLUG,CODE
12126
5120-01-578-3610INTERCHANGEABLE
SOCKET,SOCKET WRENCH
6530-01-580-8421INTERCHANGEABLE
TRAY,DRAWER,MEDICAL CART
12126
6115-01-609-5681INTERCHANGEABLE
THERMAL ASSEMBLY,EL
12126

Frequently Asked Questions

What is NSN 5950-01-028-3415?

NSN 5950-01-028-3415 is a Transformer,power, manufactured by Standex Electronics, Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-028-3415?

NSN 5950-01-028-3415 has 2 cross-referenced part numbers: 338497 (Lockheed Martin Corporation Div Rms - Mitchel Field), 12126 (Standex Electronics, Inc.).

What NSN replaces 5950-01-028-3415?

There are 12 known substitutes for 5950-01-028-3415: 6685-00-252-3023, 3040-00-448-0738, 3040-00-822-5145 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12126?

Key specifications for 12126: Reliability Indicator: NOT ESTABLISHED; Body Width: 2.063 INCHES MAXIMUM IN; Mounting Method: THREADED HOLE(S) SINGLE GROUP; Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN. 15 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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