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Technical Data Sheet
PartsTable / COMPONENT / 577B43-3
577B43-3 ✓ 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 SWITCH,THERMOSTATIC is a the manufacturer industrial component. Key specifications include body_height: 0.305 INCHES NOMINAL IN, body_diameter: 0.660 INCHES NOMINAL IN, terminal_type: TAB, SOLDER LUG, overall_height: 0.520 INCHES NOMINAL IN, overall_length: 0.844 INCHES NOMINAL IN, mounting_method: BRACKET(S) AND UNTHREADED HOLE(S). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-876-9358, 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
577B43-3
NSN: 5930-00-876-9358
FSC: 5930
CAGE: 94033 — CARDWELL CONDENSER CORP LAPOINTE-ADMIRAL DIV (USA)
SPECIFICATIONS
body_height0.305 INCHES NOMINAL IN
body_diameter0.660 INCHES NOMINAL IN
terminal_typeTAB, SOLDER LUG
overall_height0.520 INCHES NOMINAL IN
overall_length0.844 INCHES NOMINAL IN
mounting_methodBRACKET(S) AND UNTHREADED HOLE(S)
style_designatorDISC W/FLANGE
contact_adjustabilityDEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
operating_temp_rating-40.0 FAHRENHEIT MINIMUM AND 190.0 FAHRENHEIT MAXIMUM DEGF
contact_action_stimulusDECREASE
contact_stimulus_rating59.00 ACTUATION POINT NOMINAL DEGREES CELSIUS AND 70.00 DEACTUATION POINT NOMINAL DEGREES CELSIUS AND 11.00 DIFFERENTIAL POINT NOMINAL DEGREES CELSIUS
media_for_which_designedGAS OR LIQUID
NSN5930-00-876-9358
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,THERMOSTATIC TITLE COMPONENT PN 577B43-3 MFR SWITCH,THERMOSTATIC
KEY FEATURES
•
BODY HEIGHT: 0.305 INCHES NOMINAL IN
•
STYLE DESIGNATOR: DISC W/FLANGE
•
TERMINAL TYPE: TAB, SOLDER LUG
•
DISTANCE BETWEEN MOUNTING FACILITY CENTERS: 0.438 INCHES NOMINAL IN
•
CONTACT VOLTAGE RATING IN VOLTS: 125.0 AC AT SEA LEVEL SINGLE VOLTAGE
•
BODY DIAMETER: 0.660 INCHES NOMINAL IN
•
MOUNTING FACILITY PATTERN: TWO POSITION IN-LINE
TECHNICAL CHARACTERISTICS (FLIS)
BODY HEIGHT0.305 INCHES NOMINAL IN
STYLE DESIGNATORDISC W/FLANGE
OVERALL LENGTH0.844 INCHES NOMINAL IN
TERMINAL TYPETAB, SOLDER LUG
DISTANCE BETWEEN MOUNTING FACILITY CENTERS0.438 INCHES NOMINAL IN
CONTACT VOLTAGE RATING IN VOLTS125.0 AC AT SEA LEVEL SINGLE VOLTAGE
BODY DIAMETER0.660 INCHES NOMINAL IN
MOUNTING FACILITY PATTERNTWO POSITION IN-LINE
MOUNTING METHODBRACKET(S) AND UNTHREADED HOLE(S)
CONTACT LOAD CURRENT RATING1.0 AMPERES INDUCTIVE LOAD SINGLE VOLTAGE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
A5465ASInterchangeable
interchangeable cross-reference
interchangeable
A446Interchangeable
interchangeable cross-reference
interchangeable
A14Interchangeable
interchangeable cross-reference
interchangeable
47245K11Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 577B43-3?
577B43-3 is a SWITCH,THERMOSTATIC.
What parts can replace 577B43-3?
There are 4 known substitutes for 577B43-3: A5465AS, A446, A14 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 577B43-3?
577B43-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-876-9358. 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.
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Last verified: July 2026