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Technical Data Sheet
PartsTable / COMPONENT / 420543-1
420543-1 ✓ 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: 3.125 INCHES MAXIMUM IN, body_height: 3.500 INCHES MAXIMUM IN, body_length: 4.250 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, mounting_method: FLANGE AND SLOT SINGLE GROUP, frequency_rating: 60.0 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 5950-00-146-4152, 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
420543-1
NSN: 5950-00-146-4152
FSC: 5950
CAGE: 80020 — NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION JOINT BASE JBMDL (USA)
SPECIFICATIONS
body_width3.125 INCHES MAXIMUM IN
body_height3.500 INCHES MAXIMUM IN
body_length4.250 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
mounting_methodFLANGE AND SLOT SINGLE GROUP
frequency_rating60.0 HERTZ NOMINAL SINGLE COMPONENT
mounting_slot_width0.188 INCHES NOMINAL SINGLE GROUP IN
winding_power_rating125.0 VOLTS-AMPERES SINGLE COMPONENT SINGLE SECONDARY
reliability_indicatorNOT ESTABLISHED
winding_operating_current7.8 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
winding_operating_voltage16.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
mounting_facility_quantity4 SINGLE GROUP
NSN5950-00-146-4152
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER TITLE COMPONENT PN 420543-1 MFR TRANSFORMER,POWER
KEY FEATURES
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 3.438 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
WINDING OPERATING VOLTAGE: 16.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
•
INCLOSURE TYPE: FULLY INCLOSED
•
BODY WIDTH: 3.125 INCHES MAXIMUM IN
•
BODY HEIGHT: 3.500 INCHES MAXIMUM IN
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH: 2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
FREQUENCY RATING: 60.0 HERTZ NOMINAL SINGLE COMPONENT
TECHNICAL CHARACTERISTICS (FLIS)
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH3.438 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
WINDING OPERATING VOLTAGE16.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
INCLOSURE TYPEFULLY INCLOSED
BODY WIDTH3.125 INCHES MAXIMUM IN
WINDING OPERATING VOLTAGE115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
BODY HEIGHT3.500 INCHES MAXIMUM IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
FREQUENCY RATING60.0 HERTZ NOMINAL SINGLE COMPONENT
MOUNTING FACILITY QUANTITY4 SINGLE GROUP
MOUNTING METHODFLANGE AND SLOT SINGLE GROUP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
43-628Interchangeable
interchangeable cross-reference
interchangeable
9N9565AInterchangeable
interchangeable cross-reference
interchangeable
43-572Interchangeable
interchangeable cross-reference
interchangeable
73E3N134Interchangeable
interchangeable cross-reference
interchangeable
20R2CLASSRGRADE2Interchangeable
interchangeable cross-reference
interchangeable
115739Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 420543-1?
420543-1 is a TRANSFORMER,POWER.
What parts can replace 420543-1?
There are 11 known substitutes for 420543-1: 43-628, 9N9565A, 43-572 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 420543-1?
420543-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-146-4152. 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