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PartsTable / COMPONENT / ST5M1225-001
ST5M1225-001 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

TRANSFORMER,POWER AUTOTRANSFORME. Key specifications include body_length: 4.250 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, mounting_method: THREADED BUSHING SINGLE GROUP, frequency_rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT, nominal_thread_size: 0.375 INCHES SINGLE GROUP IN, body_outside_diameter: 2.050 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-333-1173, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
ST5M1225-001
NSN: 5950-00-333-1173
FSC: 5950
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
body_length4.250 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
mounting_methodTHREADED BUSHING SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
nominal_thread_size0.375 INCHES SINGLE GROUP IN
body_outside_diameter2.050 INCHES MAXIMUM IN
reliability_indicatorNOT ESTABLISHED
thread_series_designatorUNEF SINGLE GROUP
winding_operating_current5.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT
winding_operating_voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT
terminal_type_and_quantity3 THREADED STUD
winding_function_and_quantity1 PRIMARY, VARIABLE AUTOTRANSFORMER TYPE SINGLE COMPONENT
NSN5950-00-333-1173
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER AUTOTRANSFORME TITLE COMPONENT PN ST5M1225-001 MFR TRANSFORMER,POWER AUTO
KEY FEATURES
•
MOUNTING METHOD: THREADED BUSHING SINGLE GROUP
•
BODY LENGTH: 4.250 INCHES MAXIMUM IN
•
WINDING OPERATING VOLTAGE: 0.00 AC VOLTS MINIMUM AND 27.50 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
BODY OUTSIDE DIAMETER: 2.050 INCHES MAXIMUM IN
•
TERMINAL TYPE AND QUANTITY: 3 THREADED STUD
•
INPUT-OUTPUT PHASE RELATIONSHIP: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING METHODTHREADED BUSHING SINGLE GROUP
BODY LENGTH4.250 INCHES MAXIMUM IN
WINDING OPERATING VOLTAGE0.00 AC VOLTS MINIMUM AND 27.50 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT
RELIABILITY INDICATORNOT ESTABLISHED
BODY OUTSIDE DIAMETER2.050 INCHES MAXIMUM IN
WINDING OPERATING VOLTAGE115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT
TERMINAL TYPE AND QUANTITY3 THREADED STUD
INPUT-OUTPUT PHASE RELATIONSHIPSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
INCLOSURE TYPEFULLY INCLOSED
THREAD SERIES DESIGNATORUNEF SINGLE GROUP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
26449Interchangeable
interchangeable cross-reference
interchangeable
BC2159Interchangeable
interchangeable cross-reference
interchangeable
672-1298-00Interchangeable
interchangeable cross-reference
interchangeable
13212E3442Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST5M1225-001?
ST5M1225-001 is a TRANSFORMER,POWER AUTOTRANSFORME.
What parts can replace ST5M1225-001?
There are 4 known substitutes for ST5M1225-001: 26449, BC2159, 672-1298-00 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST5M1225-001?
ST5M1225-001 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-333-1173. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026