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Technical Data Sheet
PartsTable / COMPONENT / K-266-3
K-266-3 ✓ 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: 0.800 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, mounting_method: THREADED HOLE(S) SINGLE GROUP, frequency_rating: 35.0 HERTZ MINIMUM AND 55.0 KILOHERTZ MAXIMUM SINGLE COMPONENT, special_features: SEVEN SECONDARY WINDINGS, nominal_thread_size: 0.138 INCHES SINGLE GROUP 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 5950-01-166-2737, 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
K-266-3
NSN: 5950-01-166-2737
FSC: 5950
CAGE: 09798 — PAYNE MAGNETICS, INC. (USA)
SPECIFICATIONS
body_length0.800 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating35.0 HERTZ MINIMUM AND 55.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
special_featuresSEVEN SECONDARY WINDINGS
nominal_thread_size0.138 INCHES SINGLE GROUP IN
body_outside_diameter1.600 INCHES MAXIMUM IN
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp130.0 CELSIUS DEGC
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
winding_operating_current10.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
winding_operating_voltage16.30 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
NSN5950-01-166-2737
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER TITLE COMPONENT PN K-266-3 MFR TRANSFORMER,POWER
KEY FEATURES
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
FREQUENCY RATING: 35.0 HERTZ MINIMUM AND 55.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
•
WINDING OPERATING CURRENT: 2.0 AMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
•
WINDING OPERATING VOLTAGE: 300.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 7 SECONDARY SINGLE COMPONENT
•
INCLOSURE TYPE: FULLY INCLOSED
TECHNICAL CHARACTERISTICS (FLIS)
RELIABILITY INDICATORNOT ESTABLISHED
FREQUENCY RATING35.0 HERTZ MINIMUM AND 55.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
WINDING OPERATING CURRENT2.0 AMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
WINDING OPERATING VOLTAGE300.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
SPECIAL FEATURESSEVEN SECONDARY WINDINGS
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 7 SECONDARY SINGLE COMPONENT
INCLOSURE TYPEFULLY INCLOSED
WINDING OPERATING CURRENT50.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
INPUT-OUTPUT PHASE RELATIONSHIPSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
8002383Interchangeable
interchangeable cross-reference
interchangeable
8002383-1Interchangeable
interchangeable cross-reference
interchangeable
45256Interchangeable
interchangeable cross-reference
interchangeable
42781Interchangeable
interchangeable cross-reference
interchangeable
14633Interchangeable
interchangeable cross-reference
interchangeable
722912-51Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is K-266-3?
K-266-3 is a TRANSFORMER,POWER.
What parts can replace K-266-3?
There are 11 known substitutes for K-266-3: 8002383, 8002383-1, 45256 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for K-266-3?
K-266-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-01-166-2737. 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