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GK4403 ✓ 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: 3.000 INCHES NOMINAL IN, body_height: 2.563 INCHES NOMINAL IN, body_length: 3.250 INCHES NOMINAL IN, inclosure_type: OPEN, mounting_method: FLANGE AND SLOT 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 5950-00-994-0530, 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
GK4403
NSN: 5950-00-994-0530
FSC: 5950
CAGE: 51181 — KEYTRONICS, INC. DIV API TECHNOLOGIES CORP- MAGNETICS (USA)
SPECIFICATIONS
body_width3.000 INCHES NOMINAL IN
body_height2.563 INCHES NOMINAL IN
body_length3.250 INCHES NOMINAL IN
inclosure_typeOPEN
mounting_methodFLANGE AND SLOT SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
mounting_slot_width0.203 INCHES NOMINAL SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
winding_operating_current1.0 AMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
winding_operating_voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
mounting_facility_quantity4 SINGLE GROUP
terminal_type_and_quantity6 TAB, SOLDER LUG
NSN5950-00-994-0530
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER TITLE COMPONENT PN GK4403 MFR TRANSFORMER,POWER
KEY FEATURES
•
MOUNTING SLOT WIDTH: 0.203 INCHES NOMINAL SINGLE GROUP IN
•
INCLOSURE TYPE: OPEN
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH: 2.063 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
WINDING OPERATING VOLTAGE: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
•
BODY LENGTH: 3.250 INCHES NOMINAL IN
•
MOUNTING FACILITY QUANTITY: 4 SINGLE GROUP
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
MOUNTING METHOD: FLANGE AND SLOT SINGLE GROUP
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING SLOT WIDTH0.203 INCHES NOMINAL SINGLE GROUP IN
INCLOSURE TYPEOPEN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH2.063 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
WINDING OPERATING VOLTAGE115.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
BODY LENGTH3.250 INCHES NOMINAL IN
MOUNTING FACILITY QUANTITY4 SINGLE GROUP
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
MOUNTING METHODFLANGE AND SLOT SINGLE GROUP
WINDING OPERATING VOLTAGE115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
FREQUENCY RATING400.0 HERTZ NOMINAL SINGLE COMPONENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
G-12Interchangeable
interchangeable cross-reference
interchangeable
15422Interchangeable
interchangeable cross-reference
interchangeable
S134Interchangeable
interchangeable cross-reference
interchangeable
B8-2Interchangeable
interchangeable cross-reference
interchangeable
B82.0Interchangeable
interchangeable cross-reference
interchangeable
B-12-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is GK4403?
GK4403 is a TRANSFORMER,POWER.
What parts can replace GK4403?
There are 17 known substitutes for GK4403: G-12, 15422, S134 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for GK4403?
GK4403 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-994-0530. 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