4391-8-1 — SWITCH,THERMOSTATIC

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

4391-8-1: SWITCH,THERMOSTATIC.

The SWITCH,THERMOSTATIC is a the manufacturer industrial component. Key specifications include body_height: 0.656 INCHES NOMINAL IN, body_diameter: 1.188 INCHES NOMINAL IN, terminal_type: TAB, SOLDER LUG, overall_height: 1.063 INCHES NOMINAL IN, overall_length: 2.188 INCHES NOMINAL IN, mounting_method: BRACKET(S) AND UNTHREADED HOLE(S). This part is cataloged in the U.S.

Government catalog under NSN 5930-00-259-7978, 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

4391-8-1

NSN: 5930-00-259-7978
NIINs: 002597978, 011072470
FSC: 5930 — Switches
CAGE: 82647 — SENSATA TECHNOLOGIES, INC. DIV SENSATA ATTLEBORO (USA)

SPECIFICATIONS

body_height	0.656 INCHES NOMINAL IN
body_diameter	1.188 INCHES NOMINAL IN
terminal_type	TAB, SOLDER LUG
overall_height	1.063 INCHES NOMINAL IN
overall_length	2.188 INCHES NOMINAL IN
mounting_method	BRACKET(S) AND UNTHREADED HOLE(S)
style_designator	DISC W/FLANGE
features_provided	HERMETICALLY SEALED CASE
contact_adjustability	DEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
operating_temp_rating	100.0 CELSIUS MAXIMUM AND -54.0 CELSIUS MINIMUM DEGC
contact_action_stimulus	INCREASE
contact_stimulus_rating	195.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 180.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
NSN	5930-00-259-7978

COMPONENT DIAGRAM

KEY FEATURES

•

BODY DIAMETER: 1.188 INCHES NOMINAL IN

•

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

•

MOUNTING METHOD: BRACKET(S) AND UNTHREADED HOLE(S)

TECHNICAL CHARACTERISTICS

BODY DIAMETER	1.188 INCHES NOMINAL IN
OVERALL HEIGHT	1.063 INCHES NOMINAL IN
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
CONTACT LOAD CURRENT RATING	5.8 AMPERES RESISTIVE LOAD SECOND VOLTAGE
MOUNTING METHOD	BRACKET(S) AND UNTHREADED HOLE(S)
BODY HEIGHT	0.656 INCHES NOMINAL IN
UNTHREADED MOUNTING HOLE DIAMETER	0.157 INCHES NOMINAL IN

SUBSTITUTES & CROSS-REFERENCES 2

SW1253Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

C4391-8-1Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 4391-8-1?

4391-8-1 is a SWITCH,THERMOSTATIC.

What parts can replace 4391-8-1?

There are 2 known substitutes for 4391-8-1: SW1253, C4391-8-1. Substitute compatibility should be verified for your specific system.

What is the NSN for 4391-8-1?

4391-8-1 is cataloged in the U.S. Government catalog under NSN 5930-00-259-7978. This indicates validated use in U.S. government and defense supply chains.

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