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4B4N01D20AB — SWITCH,THERMOSTATIC

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

4B4N01D20AB: SWITCH,THERMOSTATIC.

The SWITCH,THERMOSTATIC is a the manufacturer industrial component. Key specifications include body_height: 2.750 INCHES NOMINAL IN, bulb_length: 6.500 INCHES NOMINAL IN, bulb_diameter: 1.125 INCHES NOMINAL IN, overall_width: 2.625 INCHES NOMINAL IN, terminal_type: SCREW, overall_height: 4.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5930-01-336-9052, 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
4B4N01D20AB
NSN: 5930-01-336-9052
FSC: 5930 — Switches
CAGE: 19278 — DETROIT SWITCH INC DBA DETROIT SWITCH INC (USA)
SPECIFICATIONS
body_height2.750 INCHES NOMINAL IN
bulb_length6.500 INCHES NOMINAL IN
bulb_diameter1.125 INCHES NOMINAL IN
overall_width2.625 INCHES NOMINAL IN
terminal_typeSCREW
overall_height4.750 INCHES NOMINAL IN
mounting_methodBRACKET(S) AND UNTHREADED HOLE(S)
style_designatorRECTANGULAR
features_providedELECTRICAL ACCESS PORT AND BOX CONNECTOR
capillary_tube_length240.0 INCHES NOMINAL IN
contact_adjustabilityACTUATION POINT ADJUSTABLE
contact_action_stimulusINCREASE
NSN5930-01-336-9052
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,THERMOSTATIC TITLE COMPONENT PN 4B4N01D20AB MFR SWITCH,THERMOSTATIC
KEY FEATURES
•
CONTACT ACTION STIMULUS: INCREASE
•
TERMINAL TYPE: SCREW
•
MOUNTING FACILITY PATTERN: TWO POSITION IN-LINE
•
BULB LENGTH: 6.500 INCHES NOMINAL IN
•
BULB DIAMETER: 1.125 INCHES NOMINAL IN
•
CONTACT LOAD CURRENT RATING: 15.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT4.750 INCHES NOMINAL IN
CONTACT ACTION STIMULUSINCREASE
TERMINAL TYPESCREW
MOUNTING FACILITY PATTERNTWO POSITION IN-LINE
BULB LENGTH6.500 INCHES NOMINAL IN
BULB DIAMETER1.125 INCHES NOMINAL IN
CONTACT LOAD CURRENT RATING15.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE
CONTACT LOAD CURRENT RATING15.0 AMPERES RESISTIVE LOAD THIRD VOLTAGE
CONTACT LOAD CURRENT RATING500.0 MILLIAMPERES RESISTIVE LOAD FOURTH VOLTAGE
CONTACT LOAD CURRENT RATING15.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE
OTHER ITEMS IN FSC 5930 — Switches
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5930-00-000-0117 5930-00-001-1407 5930-00-001-1890 5930-00-001-2571 5930-00-001-2575 5930-00-001-2580 5930-00-001-2608 5930-00-001-2609
SUBSTITUTES & CROSS-REFERENCES 1
025-28185Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4B4N01D20AB?
4B4N01D20AB is a SWITCH,THERMOSTATIC.
What parts can replace 4B4N01D20AB?
There is 1 known substitute for 4B4N01D20AB: 025-28185. Substitute compatibility should be verified for your specific system.
What is the NSN for 4B4N01D20AB?
4B4N01D20AB is cataloged in the U.S. Government catalog under NSN 5930-01-336-9052. 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.