PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11643Transformer,power

Standex Electronics, Inc. · NSN 5950-01-149-5230 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-149-5230 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-149-5230. Primary manufacturer part number: 11643.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Inclosure Type: HERMETICALLY SEALED
  • Features Provided: COLOR CODED TERMINAL
  • Winding Operating Voltage: 4.25 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-149-5230, 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 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-149-5230
Primary Part Number11643
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerStandex Electronics, Inc.
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Features ProvidedCOLOR CODED TERMINAL
Winding Operating Voltage4.25 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Height1.750 INCHES MAXIMUM IN
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Maximum Operating Temp85.0 CELSIUS DEGC
Mounting Facility Quantity2 SINGLE GROUP
Body Length1.312 INCHES MAXIMUM IN
Body Width1.312 INCHES MAXIMUM IN
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Distance Between Mounting Facility Centers1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity4 WIRE HOOK
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Operating Current0.9 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2990-00-008-7405T-11643 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
6610-00-070-001111643 INTERCHANGEABLE
Arm,link
Aerosonic Llc
2910-00-336-803211643 INTERCHANGEABLE
Weight,over-Speed Governor
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5340-00-657-9958SM-B-187542 INTERCHANGEABLE
Clip,retaining
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5325-00-897-9883143040 INTERCHANGEABLE
Ring,retaining
Telemechanics Inc
6750-01-400-304811643 INTERCHANGEABLE
Developer,photographic
Ilford Photo Corp
2520-01-512-5314143040 INTERCHANGEABLE
Clutch Assembly,friction
Fwd Seagrave Holdings Lp
Cross-Reference Index
Part NumberManufacturer
143040 Northrop Grumman Systems Corporation (USA)
11643 PRIMARY Standex Electronics, Inc. (USA)
Related Parts
2990-00-008-7405INTERCHANGEABLE
MUFFLER,EXHAUST
T-11643
6610-00-070-0011INTERCHANGEABLE
ARM,LINK
11643
2910-00-336-8032INTERCHANGEABLE
WEIGHT,OVER-SPEED GOVERNOR
11643
5340-00-657-9958INTERCHANGEABLE
CLIP,RETAINING
SM-B-187542
5325-00-897-9883INTERCHANGEABLE
RING,RETAINING
143040
6750-01-400-3048INTERCHANGEABLE
DEVELOPER,PHOTOGRAPHIC
11643
2520-01-512-5314INTERCHANGEABLE
CLUTCH ASSEMBLY,FRICTION
143040

Frequently Asked Questions

What is NSN 5950-01-149-5230?

NSN 5950-01-149-5230 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 5950-01-149-5230?

NSN 5950-01-149-5230 has 2 cross-referenced part numbers: 143040 (Northrop Grumman Systems Corporation), 11643 (Standex Electronics, Inc.).

What NSN replaces 5950-01-149-5230?

There are 7 known substitutes for 5950-01-149-5230: 2990-00-008-7405, 6610-00-070-0011, 2910-00-336-8032 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11643?

Key specifications for 11643: Reliability Indicator: NOT ESTABLISHED; Mounting Method: THREADED STUD(S) SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED; Features Provided: COLOR CODED TERMINAL. 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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