PartsTable
Technical Data Sheet
PartsTable / COMPONENT / K3956
K3956 ✓ 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 overall_width: 1.875 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, overall_height: 1.572 INCHES MINIMUM AND 1.582 INCHES MAXIMUM IN, overall_length: 2.688 INCHES NOMINAL IN, mounting_method: FLANGE AND UNTHREADED HOLE(S) 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 5950-00-903-7388, 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
K3956
NSN: 5950-00-903-7388
FSC: 5950
CAGE: 51181 — KEYTRONICS, INC. DIV API TECHNOLOGIES CORP- MAGNETICS (USA)
SPECIFICATIONS
overall_width1.875 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
overall_height1.572 INCHES MINIMUM AND 1.582 INCHES MAXIMUM IN
overall_length2.688 INCHES NOMINAL IN
mounting_methodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
features_providedCOLOR CODED LEAD AND TINNED WIRE LEADS
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp135.0 CELSIUS DEGC
mounting_hole_diameter0.130 INCHES NOMINAL SINGLE GROUP IN
winding_operating_voltage31.00 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
mounting_facility_quantity2 SINGLE GROUP
NSN5950-00-903-7388
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER TITLE COMPONENT PN K3956 MFR TRANSFORMER,POWER
KEY FEATURES
•
INCLOSURE TYPE: FULLY INCLOSED
•
WINDING OPERATING VOLTAGE: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
•
FREQUENCY RATING: 400.0 HERTZ NOMINAL SINGLE COMPONENT
•
DISTANCE BETWEEN MOUNTING FACILITY CENTERS: 2.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
MAXIMUM OPERATING TEMP: 135.0 CELSIUS DEGC
•
MOUNTING FACILITY QUANTITY: 2 SINGLE GROUP
•
FEATURES PROVIDED: COLOR CODED LEAD AND TINNED WIRE LEADS
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT1.572 INCHES MINIMUM AND 1.582 INCHES MAXIMUM IN
INCLOSURE TYPEFULLY INCLOSED
WINDING OPERATING VOLTAGE115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
FREQUENCY RATING400.0 HERTZ NOMINAL SINGLE COMPONENT
DISTANCE BETWEEN MOUNTING FACILITY CENTERS2.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
MAXIMUM OPERATING TEMP135.0 CELSIUS DEGC
MOUNTING FACILITY QUANTITY2 SINGLE GROUP
FEATURES PROVIDEDCOLOR CODED LEAD AND TINNED WIRE LEADS
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
INPUT-OUTPUT PHASE RELATIONSHIPSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
NR22Interchangeable
interchangeable cross-reference
interchangeable
29-150-20-0012XBLKInterchangeable
interchangeable cross-reference
interchangeable
30Interchangeable
interchangeable cross-reference
interchangeable
CS7268Interchangeable
interchangeable cross-reference
interchangeable
3872Interchangeable
interchangeable cross-reference
interchangeable
9137179Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy K3956?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is K3956?
K3956 is a TRANSFORMER,POWER.
What parts can replace K3956?
There are 12 known substitutes for K3956: NR22, 29-150-20-0012XBLK, 30 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for K3956?
K3956 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-903-7388. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — K3956

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026