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ST0643 ✓ 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

The TRANSFORMER,POWER is a the manufacturer industrial component. Key specifications include body_width: 0.750 INCHES MAXIMUM IN, body_height: 0.365 INCHES MAXIMUM IN, body_length: 1.500 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, mounting_method: THREADED HOLE(S) SINGLE GROUP, frequency_rating: 800.0 HERTZ NOMINAL SINGLE COMPONENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-349-6351, 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
ST0643
NSN: 5950-00-349-6351
FSC: 5950
CAGE: 90095 — INRCORE, LLC DIV INRCORE (USA)
SPECIFICATIONS
body_width0.750 INCHES MAXIMUM IN
body_height0.365 INCHES MAXIMUM IN
body_length1.500 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating800.0 HERTZ NOMINAL SINGLE COMPONENT
nominal_thread_size0.086 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp130.0 CELSIUS DEGC
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
winding_operating_voltage1.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
mounting_facility_quantity2 SINGLE GROUP
NSN5950-00-349-6351
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER TITLE COMPONENT PN ST0643 MFR TRANSFORMER,POWER
KEY FEATURES
•
WINDING OPERATING VOLTAGE: 1.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
•
MOUNTING FACILITY QUANTITY: 2 SINGLE GROUP
•
FREQUENCY RATING: 800.0 HERTZ NOMINAL SINGLE COMPONENT
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
BODY LENGTH: 1.500 INCHES MAXIMUM IN
•
WINDING FUNCTION AND QUANTITY: 2 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
•
BODY WIDTH: 0.750 INCHES MAXIMUM IN
•
MAXIMUM OPERATING TEMP: 130.0 CELSIUS DEGC
TECHNICAL CHARACTERISTICS (FLIS)
WINDING OPERATING VOLTAGE1.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
MOUNTING FACILITY QUANTITY2 SINGLE GROUP
FREQUENCY RATING800.0 HERTZ NOMINAL SINGLE COMPONENT
RELIABILITY INDICATORNOT ESTABLISHED
BODY LENGTH1.500 INCHES MAXIMUM IN
WINDING FUNCTION AND QUANTITY2 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
BODY WIDTH0.750 INCHES MAXIMUM IN
MAXIMUM OPERATING TEMP130.0 CELSIUS DEGC
INCLOSURE TYPEFULLY INCLOSED
MOUNTING METHODTHREADED HOLE(S) SINGLE GROUP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
BS4-1575P19Interchangeable
interchangeable cross-reference
interchangeable
34-135-1Interchangeable
interchangeable cross-reference
interchangeable
5306Interchangeable
interchangeable cross-reference
interchangeable
M169Interchangeable
interchangeable cross-reference
interchangeable
169MInterchangeable
interchangeable cross-reference
interchangeable
2810H21-031Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST0643?
ST0643 is a TRANSFORMER,POWER.
What parts can replace ST0643?
There are 15 known substitutes for ST0643: BS4-1575P19, 34-135-1, 5306 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST0643?
ST0643 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-349-6351. 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