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Technical Data Sheet
PartsTable / COMPONENT / 2957-78-1
2957-78-1 ✓ 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_length: 1.000 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED, mounting_method: TERMINAL SINGLE GROUP, frequency_rating: 380.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT, overall_diameter: 1.031 INCHES NOMINAL IN, reliability_indicator: NOT ESTABLISHED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-905-6144, 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
2957-78-1
NSN: 5950-00-905-6144
FSC: 5950
CAGE: 97896 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL DIV AEROSPACE ? REDMOND COMMERCIAL (USA)
SPECIFICATIONS
body_length1.000 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
mounting_methodTERMINAL SINGLE GROUP
frequency_rating380.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT
overall_diameter1.031 INCHES NOMINAL IN
reliability_indicatorNOT ESTABLISHED
winding_shielding_methodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
winding_operating_current150.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY
winding_operating_voltage3.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
terminal_type_and_quantity11 WIRE LEAD
winding_function_and_quantity1 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
input-output_phase_relationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
NSN5950-00-905-6144
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER TITLE COMPONENT PN 2957-78-1 MFR TRANSFORMER,POWER
KEY FEATURES
•
INCLOSURE TYPE: FULLY INCLOSED
•
WINDING OPERATING CURRENT: 150.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY
•
FREQUENCY RATING: 380.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT
•
BODY LENGTH: 1.000 INCHES NOMINAL IN
•
WINDING OPERATING VOLTAGE: 3.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
•
WINDING SHIELDING METHOD: INTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
TECHNICAL CHARACTERISTICS (FLIS)
INCLOSURE TYPEFULLY INCLOSED
WINDING OPERATING CURRENT150.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY
FREQUENCY RATING380.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT
WINDING OPERATING CURRENT10.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
BODY LENGTH1.000 INCHES NOMINAL IN
WINDING OPERATING VOLTAGE3.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
WINDING OPERATING CURRENT10.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
WINDING SHIELDING METHODINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
MOUNTING METHODTERMINAL SINGLE GROUP
INPUT-OUTPUT PHASE RELATIONSHIPSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
42259Interchangeable
interchangeable cross-reference
interchangeable
H880480-2Interchangeable
interchangeable cross-reference
interchangeable
15GDIALInterchangeable
interchangeable cross-reference
interchangeable
42257Interchangeable
interchangeable cross-reference
interchangeable
70886Interchangeable
interchangeable cross-reference
interchangeable
131TVInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2957-78-1?
2957-78-1 is a TRANSFORMER,POWER.
What parts can replace 2957-78-1?
There are 9 known substitutes for 2957-78-1: 42259, H880480-2, 15GDIAL and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2957-78-1?
2957-78-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-905-6144. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026