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B458889-1 — SWITCH,THERMOSTATIC

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

B458889-1: SWITCH,THERMOSTATIC.

The SWITCH,THERMOSTATIC is a the manufacturer industrial component. Key specifications include body_height: 0.688 INCHES NOMINAL IN, body_diameter: 1.250 INCHES NOMINAL IN, terminal_type: TAB, SOLDER LUG, overall_height: 0.719 INCHES NOMINAL IN, overall_length: 1.859 INCHES NOMINAL IN, mounting_method: BRACKET(S). This part is cataloged in the U.S.

Government catalog under NSN 5930-00-253-5306, 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
B458889-1
NSN: 5930-00-253-5306
FSC: 5930 — Switches
CAGE: 11447 — L3 TECHNOLOGIES, INC. DIV COMMUNICATION SYSTEMS-EAST (USA)
SPECIFICATIONS
body_height0.688 INCHES NOMINAL IN
body_diameter1.250 INCHES NOMINAL IN
terminal_typeTAB, SOLDER LUG
overall_height0.719 INCHES NOMINAL IN
overall_length1.859 INCHES NOMINAL IN
mounting_methodBRACKET(S)
style_designatorDISC W/FLANGE
features_providedHERMETICALLY SEALED CASE
frequency_in_hertz60.0 FIRST VOLTAGE
contact_adjustabilityDEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
contact_action_stimulusINCREASE
contact_stimulus_rating130.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 110.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
NSN5930-00-253-5306
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,THERMOSTATIC TITLE COMPONENT PN B458889-1 MFR SWITCH,THERMOSTATIC
KEY FEATURES
•
BODY DIAMETER: 1.250 INCHES NOMINAL IN
•
FREQUENCY IN HERTZ: 60.0 FIRST VOLTAGE
•
CONTACT ACTION STIMULUS: INCREASE
•
TERMINAL TYPE: TAB, SOLDER LUG
•
MOUNTING FACILITY PATTERN: TWO POSITION IN-LINE
•
CONTACT LOAD CURRENT RATING: 2.9 AMPERES RESISTIVE LOAD FIRST VOLTAGE
TECHNICAL CHARACTERISTICS
BODY DIAMETER1.250 INCHES NOMINAL IN
OVERALL HEIGHT0.719 INCHES NOMINAL IN
FREQUENCY IN HERTZ60.0 FIRST VOLTAGE
CONTACT ACTION STIMULUSINCREASE
TERMINAL TYPETAB, SOLDER LUG
MOUNTING FACILITY PATTERNTWO POSITION IN-LINE
CONTACT LOAD CURRENT RATING2.9 AMPERES RESISTIVE LOAD FIRST VOLTAGE
CONTACT LOAD CURRENT RATING5.8 AMPERES RESISTIVE LOAD SECOND VOLTAGE
MOUNTING METHODBRACKET(S)
BODY HEIGHT0.688 INCHES NOMINAL IN
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
C4391-4-1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B458889-1?
B458889-1 is a SWITCH,THERMOSTATIC.
What parts can replace B458889-1?
There is 1 known substitute for B458889-1: C4391-4-1. Substitute compatibility should be verified for your specific system.
What is the NSN for B458889-1?
B458889-1 is cataloged in the U.S. Government catalog under NSN 5930-00-253-5306. 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.