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PartsTable / COMPONENT / D643
D643 ✓ 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_length: 1.000 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, mounting_method: THREADED HOLE(S) SINGLE GROUP, frequency_rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT, nominal_thread_size: 0.138 INCHES SINGLE GROUP IN, body_outside_diameter: 1.562 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 5950-00-421-6373, 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
D643
NSN: 5950-00-421-6373
FSC: 5950
CAGE: 09798 — PAYNE MAGNETICS, INC. (USA)
SPECIFICATIONS
body_length1.000 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
nominal_thread_size0.138 INCHES SINGLE GROUP IN
body_outside_diameter1.562 INCHES MAXIMUM IN
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp130.0 CELSIUS DEGC
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
winding_shielding_methodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
winding_operating_current65.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
winding_operating_voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
NSN5950-00-421-6373
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER TITLE COMPONENT PN D643 MFR TRANSFORMER,POWER
KEY FEATURES
•
WINDING OPERATING CURRENT: 150.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
•
INPUT-OUTPUT PHASE RELATIONSHIP: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
•
BODY OUTSIDE DIAMETER: 1.562 INCHES MAXIMUM IN
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
MAXIMUM OPERATING TEMP: 130.0 CELSIUS DEGC
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
•
TERMINAL TYPE AND QUANTITY: 7 TURRET
•
BODY LENGTH: 1.000 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
WINDING OPERATING CURRENT150.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
INPUT-OUTPUT PHASE RELATIONSHIPSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
BODY OUTSIDE DIAMETER1.562 INCHES MAXIMUM IN
RELIABILITY INDICATORNOT ESTABLISHED
MAXIMUM OPERATING TEMP130.0 CELSIUS DEGC
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
TERMINAL TYPE AND QUANTITY7 TURRET
BODY LENGTH1.000 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
WINDING OPERATING CURRENT65.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
42040Interchangeable
interchangeable cross-reference
interchangeable
250126-3Interchangeable
interchangeable cross-reference
interchangeable
68A3571Interchangeable
interchangeable cross-reference
interchangeable
5BCInterchangeable
interchangeable cross-reference
interchangeable
207802Interchangeable
interchangeable cross-reference
interchangeable
D643Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D643?
D643 is a TRANSFORMER,POWER.
What parts can replace D643?
There are 18 known substitutes for D643: 42040, 250126-3, 68A3571 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D643?
D643 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-421-6373. 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