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Technical Data Sheet
439-287 ✓ 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 SWITCH,THERMOSTATIC is a the manufacturer industrial component. Key specifications include body_width: 0.375 INCHES NOMINAL IN, body_height: 0.735 INCHES MINIMUM AND 0.797 INCHES MAXIMUM IN, body_length: 0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN, current_type: DC, overall_width: 0.375 INCHES NOMINAL IN, terminal_type: CONNECTOR, RECEPTACLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-950-6056, 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
439-287
NSN: 5930-00-950-6056
FSC: 5930
CAGE: 93410 — ESSEX GROUP INC CONTROLS DIV LEXINGTON PLANT
SPECIFICATIONS
body_width0.375 INCHES NOMINAL IN
body_height0.735 INCHES MINIMUM AND 0.797 INCHES MAXIMUM IN
body_length0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
current_typeDC
overall_width0.375 INCHES NOMINAL IN
terminal_typeCONNECTOR, RECEPTACLE
overall_height1.031 INCHES MAXIMUM IN
overall_length1.344 INCHES MINIMUM AND 1.406 INCHES MAXIMUM IN
voltage_rating24.0 VOLTS NOMINAL
mounting_methodHOLE
actuation_methodFLOAT
float_arm_length4.500 INCHES NOMINAL IN
NSN5930-00-950-6056
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,THERMOSTATIC TITLE COMPONENT PN 439-287 MFR SWITCH,THERMOSTATIC
KEY FEATURES
CONTACT VOLTAGE RATING IN VOLTS: 115.0 AC AT SEA LEVEL FIRST VOLTAGE
CONTACT ADJUSTABILITY: ACTUATION POINT NOT ADJUSTABLE
MOUNTING METHOD: BRACKET(S) AND UNTHREADED HOLE(S)
FEATURES PROVIDED: HERMETICALLY SEALED CASE
BODY LENGTH: 0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CONTACT VOLTAGE RATING IN VOLTS115.0 AC AT SEA LEVEL FIRST VOLTAGE
CONTACT VOLTAGE RATING IN VOLTS230.0 AC AT SEA LEVEL SECOND VOLTAGE
CONTACT ADJUSTABILITYACTUATION POINT NOT ADJUSTABLE
MOUNTING METHODBRACKET(S) AND UNTHREADED HOLE(S)
FEATURES PROVIDEDHERMETICALLY SEALED CASE
OVERALL LENGTH1.344 INCHES MINIMUM AND 1.406 INCHES MAXIMUM IN
BODY LENGTH0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
OVERALL HEIGHT1.031 INCHES MAXIMUM IN
MOUNTING FACILITY PATTERNTWO POSITION IN-LINE
TEMP SENSING ELEMENT TYPEINTERNAL SENSOR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
M-606Interchangeable
interchangeable cross-reference
interchangeable
15938Interchangeable
interchangeable cross-reference
interchangeable
42533Interchangeable
interchangeable cross-reference
interchangeable
55327Interchangeable
interchangeable cross-reference
interchangeable
F742Interchangeable
interchangeable cross-reference
interchangeable
439287Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 439-287?
439-287 is a SWITCH,THERMOSTATIC.
What parts can replace 439-287?
There are 12 known substitutes for 439-287: M-606, 15938, 42533 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 439-287?
439-287 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-950-6056. This indicates validated use in U.S. government and defense supply chains.
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