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Technical Data Sheet
PartsTable / COMPONENT / BX-9143
BX-9143 ✓ 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 overall_width: 3.187 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, overall_height: 3.380 INCHES MAXIMUM IN, overall_length: 4.000 INCHES MAXIMUM IN, mounting_method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP, frequency_rating: 400.0 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 5950-00-583-4769, 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
BX-9143
NSN: 5950-00-583-4769
FSC: 5950
CAGE: 85323 — BALTIMORE TRANSFORMER CO (USA)
SPECIFICATIONS
overall_width3.187 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
overall_height3.380 INCHES MAXIMUM IN
overall_length4.000 INCHES MAXIMUM IN
mounting_methodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
reliability_indicatorNOT ESTABLISHED
mounting_hole_diameter0.218 INCHES MINIMUM AND 0.228 INCHES MAXIMUM SINGLE GROUP IN
winding_operating_current8.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT
winding_operating_voltage118.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT
mounting_facility_quantity4 SINGLE GROUP
terminal_type_and_quantity5 STANDOFF, THREADED STUD
NSN5950-00-583-4769
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER AUTOTRANSFORME TITLE COMPONENT PN BX-9143 MFR TRANSFORMER,POWER AUTO
KEY FEATURES
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 3.240 INCHES MINIMUM AND 3.260 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
WINDING OPERATING VOLTAGE: 28.00 AC VOLTS NOMINAL AND 110.00 AC VOLTS NOMINAL AND 114.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY OUTPUT
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH: 1.927 INCHES MINIMUM AND 1.947 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
MOUNTING METHOD: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
•
FREQUENCY RATING: 400.0 HERTZ NOMINAL SINGLE COMPONENT
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT
TECHNICAL CHARACTERISTICS (FLIS)
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH3.240 INCHES MINIMUM AND 3.260 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
WINDING OPERATING VOLTAGE28.00 AC VOLTS NOMINAL AND 110.00 AC VOLTS NOMINAL AND 114.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY OUTPUT
OVERALL WIDTH3.187 INCHES MAXIMUM IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH1.927 INCHES MINIMUM AND 1.947 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
MOUNTING METHODFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
FREQUENCY RATING400.0 HERTZ NOMINAL SINGLE COMPONENT
OVERALL HEIGHT3.380 INCHES MAXIMUM IN
WINDING FUNCTION AND QUANTITY1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT
INCLOSURE TYPEFULLY INCLOSED
MOUNTING FACILITY QUANTITY4 SINGLE GROUP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
6557Interchangeable
interchangeable cross-reference
interchangeable
7964Interchangeable
interchangeable cross-reference
interchangeable
107E5825-1Interchangeable
interchangeable cross-reference
interchangeable
16KP243Interchangeable
interchangeable cross-reference
interchangeable
5306PL1495014Interchangeable
interchangeable cross-reference
interchangeable
G1921BH031C088NInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BX-9143?
BX-9143 is a TRANSFORMER,POWER AUTOTRANSFORME.
What parts can replace BX-9143?
There are 19 known substitutes for BX-9143: 6557, 7964, 107E5825-1 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BX-9143?
BX-9143 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-583-4769. 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