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Technical Data Sheet
PartsTable / COMPONENT / 644792-103
644792-103 ✓ 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: 1.150 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN, body_diameter: 0.665 INCHES MAXIMUM IN, terminal_type: CONNECTOR, RECEPTACLE, overall_height: 1.714 INCHES MINIMUM AND 1.854 INCHES MAXIMUM IN, overall_length: 1.300 INCHES MAXIMUM IN, mounting_method: BRACKET(S) AND SLOT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-078-3578, 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
644792-103
NSN: 5930-00-078-3578
FSC: 5930
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
body_height1.150 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
body_diameter0.665 INCHES MAXIMUM IN
terminal_typeCONNECTOR, RECEPTACLE
overall_height1.714 INCHES MINIMUM AND 1.854 INCHES MAXIMUM IN
overall_length1.300 INCHES MAXIMUM IN
mounting_methodBRACKET(S) AND SLOT
style_designatorDISC W/FLANGE
features_providedELECTRICAL BOX CONNECTOR
mounting_slot_width0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
contact_adjustabilityDEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
operating_temp_rating-65.0 FAHRENHEIT MINIMUM AND 300.0 FAHRENHEIT MAXIMUM DEGF
contact_action_stimulusDECREASE
NSN5930-00-078-3578
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,THERMOSTATIC TITLE COMPONENT PN 644792-103 MFR SWITCH,THERMOSTATIC
KEY FEATURES
•
OPERATING TEMP RATING: -65.0 FAHRENHEIT MINIMUM AND 300.0 FAHRENHEIT MAXIMUM DEGF
•
CONTACT STIMULUS RATING: 115.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 130.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
•
FEATURES PROVIDED: ELECTRICAL BOX CONNECTOR
•
HAZARDOUS LOCATIONS/ENVIRONMENTAL PROTECTION: EXPLOSION PROOF
•
TEMP SENSING ELEMENT TYPE: INTERNAL SENSOR
•
MOUNTING METHOD: BRACKET(S) AND SLOT
•
BODY DIAMETER: 0.665 INCHES MAXIMUM IN
•
CONTACT ACTION STIMULUS: DECREASE
TECHNICAL CHARACTERISTICS (FLIS)
OPERATING TEMP RATING-65.0 FAHRENHEIT MINIMUM AND 300.0 FAHRENHEIT MAXIMUM DEGF
CONTACT STIMULUS RATING115.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 130.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
FEATURES PROVIDEDELECTRICAL BOX CONNECTOR
HAZARDOUS LOCATIONS/ENVIRONMENTAL PROTECTIONEXPLOSION PROOF
TEMP SENSING ELEMENT TYPEINTERNAL SENSOR
MOUNTING METHODBRACKET(S) AND SLOT
BODY DIAMETER0.665 INCHES MAXIMUM IN
CONTACT ACTION STIMULUSDECREASE
CONTACT ADJUSTABILITYDEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
CONTACT VOLTAGE RATING IN VOLTS28.0 DC AT SEA LEVEL SINGLE VOLTAGE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
31A7984Interchangeable
interchangeable cross-reference
interchangeable
21730Interchangeable
interchangeable cross-reference
interchangeable
113462-16Interchangeable
interchangeable cross-reference
interchangeable
8M3159Interchangeable
interchangeable cross-reference
interchangeable
1-2-0DX062Interchangeable
interchangeable cross-reference
interchangeable
PM21678Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 644792-103?
644792-103 is a SWITCH,THERMOSTATIC.
What parts can replace 644792-103?
There are 12 known substitutes for 644792-103: 31A7984, 21730, 113462-16 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 644792-103?
644792-103 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-078-3578. 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