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1242-1A — SWITCH,THERMOSTATIC

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

1242-1A: SWITCH,THERMOSTATIC.

The SWITCH,THERMOSTATIC is a the manufacturer industrial component. Key specifications include body_length: 0.420 INCHES NOMINAL IN, body_diameter: 1.700 INCHES NOMINAL IN, terminal_type: TAB W/SCREW, overall_length: 0.420 INCHES NOMINAL IN, mounting_method: FLANGE, overall_diameter: 2.700 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5930-00-822-4675, 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
MRO→ MRO_GENERAL→ 1242-1A
NSN: 5930-00-822-4675
FSC: 5930 — Switches
CAGE: 97896 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL DIV AEROSPACE ? REDMOND COMMERCIAL (USA)
SPECIFICATIONS
body_length0.420 INCHES NOMINAL IN
body_diameter1.700 INCHES NOMINAL IN
terminal_typeTAB W/SCREW
overall_length0.420 INCHES NOMINAL IN
mounting_methodFLANGE
overall_diameter2.700 INCHES NOMINAL IN
special_featuresWEAPON SYSTEM ESSENTIAL
style_designatorCYLINDRICAL W/FLANGE
contact_adjustabilityDEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
operating_temp_rating700.0 FAHRENHEIT MAXIMUM DEGF
contact_action_stimulusINCREASE
contact_stimulus_rating120.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 105.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
NSN5930-00-822-4675
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,THERMOSTATIC TITLE COMPONENT PN 1242-1A MFR SWITCH,THERMOSTATIC
KEY FEATURES
•
BODY DIAMETER: 1.700 INCHES NOMINAL IN
•
CONTACT ACTION STIMULUS: INCREASE
•
TERMINAL TYPE: TAB W/SCREW
•
MOUNTING FACILITY PATTERN: FOUR POSITION CIRCULAR
•
OVERALL DIAMETER: 2.700 INCHES NOMINAL IN
•
MOUNTING FACILITY CIRCLE RADIUS: 1.080 INCHES NOMINAL IN
•
CONTACT LOAD CURRENT RATING: 3.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE
•
MOUNTING METHOD: FLANGE
TECHNICAL CHARACTERISTICS
BODY DIAMETER1.700 INCHES NOMINAL IN
CONTACT ACTION STIMULUSINCREASE
TERMINAL TYPETAB W/SCREW
MOUNTING FACILITY PATTERNFOUR POSITION CIRCULAR
OVERALL DIAMETER2.700 INCHES NOMINAL IN
MOUNTING FACILITY CIRCLE RADIUS1.080 INCHES NOMINAL IN
CONTACT LOAD CURRENT RATING3.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE
MOUNTING METHODFLANGE
CRITICALITY CODE JUSTIFICATIONFEAT
STYLE DESIGNATORCYLINDRICAL W/FLANGE
SUBSTITUTES & CROSS-REFERENCES 2
975-0021-002Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
8627313Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 1242-1A?
1242-1A is a SWITCH,THERMOSTATIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1242-1A?
There are 2 known substitutes for 1242-1A: 975-0021-002, 8627313. Substitute compatibility should be verified for your specific system.
What is the NSN for 1242-1A?
1242-1A is cataloged in the U.S. Government catalog under NSN 5930-00-822-4675. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.