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Technical Data Sheet
PartsTable / COMPONENT / K-866
K-866 ✓ 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 REACTOR is a the manufacturer industrial component. Key specifications include rating_method: ELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE WINDING, turn_quantity: 25 SINGLE COMPONENT SINGLE WINDING, inclosure_type: FULLY INCLOSED, overall_length: 0.500 INCHES NOMINAL IN, mounting_method: THREADED HOLE(S) SINGLE GROUP, frequency_rating: 55.00 KILOHERTZ MINIMUM AND 80.0 KILOHERTZ MAXIMUM 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 5950-01-248-2239, 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-866
NSN: 5950-01-248-2239
FSC: 5950
CAGE: 09798 — PAYNE MAGNETICS, INC. (USA)
SPECIFICATIONS
rating_methodELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE WINDING
turn_quantity25 SINGLE COMPONENT SINGLE WINDING
inclosure_typeFULLY INCLOSED
overall_length0.500 INCHES NOMINAL IN
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating55.00 KILOHERTZ MINIMUM AND 80.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
overall_diameter0.900 INCHES NOMINAL IN
winding_quantity1 SINGLE COMPONENT
inductance_rating45.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
nominal_thread_size0.112 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
winding_conductor_size0.03196 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE WINDING IN
NSN5950-01-248-2239
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available REACTOR TITLE COMPONENT PN K-866 MFR REACTOR
KEY FEATURES
•
INCLOSURE TYPE: FULLY INCLOSED
•
WINDING QUANTITY: 1 SINGLE COMPONENT
•
TERMINAL TYPE AND QUANTITY: 2 PIN
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
•
WINDING OPERATING CURRENT: 6.5 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
•
NOMINAL THREAD SIZE: 0.112 INCHES SINGLE GROUP IN
TECHNICAL CHARACTERISTICS (FLIS)
INCLOSURE TYPEFULLY INCLOSED
WINDING QUANTITY1 SINGLE COMPONENT
TERMINAL TYPE AND QUANTITY2 PIN
OVERALL LENGTH0.500 INCHES NOMINAL IN
RELIABILITY INDICATORNOT ESTABLISHED
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
WINDING OPERATING CURRENT6.5 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
NOMINAL THREAD SIZE0.112 INCHES SINGLE GROUP IN
MOUNTING FACILITY QUANTITY1 SINGLE GROUP
INDUCTANCE RATING45.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
42122Interchangeable
interchangeable cross-reference
interchangeable
MS51861&35Interchangeable
interchangeable cross-reference
interchangeable
YK0003Interchangeable
interchangeable cross-reference
interchangeable
5305004324170Interchangeable
interchangeable cross-reference
interchangeable
6423239Interchangeable
interchangeable cross-reference
interchangeable
2236979Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is K-866?
K-866 is a REACTOR.
What parts can replace K-866?
There are 14 known substitutes for K-866: 42122, MS51861&35, YK0003 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for K-866?
K-866 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-01-248-2239. 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