4391-8-78 — SWITCH,THERMOSTATIC

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

4391-8-78: SWITCH,THERMOSTATIC.

The SWITCH,THERMOSTATIC is a the manufacturer industrial component. Key specifications include body_height: 0.656 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN, body_diameter: 1.094 INCHES MINIMUM AND 1.156 INCHES MAXIMUM IN, terminal_type: TAB, SOLDER LUG, overall_height: 1.047 INCHES NOMINAL IN, overall_length: 1.812 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN, mounting_method: BRACKET(S) AND UNTHREADED HOLE(S). This part is cataloged in the U.S.

Government catalog under NSN 5930-00-675-9604, 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

4391-8-78

NSN: 5930-00-675-9604
FSC: 5930 — Switches
CAGE: 82647 — SENSATA TECHNOLOGIES, INC. DIV SENSATA ATTLEBORO (USA)

SPECIFICATIONS

body_height	0.656 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN
body_diameter	1.094 INCHES MINIMUM AND 1.156 INCHES MAXIMUM IN
terminal_type	TAB, SOLDER LUG
overall_height	1.047 INCHES NOMINAL IN
overall_length	1.812 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN
mounting_method	BRACKET(S) AND UNTHREADED HOLE(S)
style_designator	DISC W/FLANGE
features_provided	HERMETICALLY SEALED CASE
precious_material	SILVER
contact_adjustability	ACTUATION POINT NOT ADJUSTABLE AND DEACTUATION POINT NOT ADJUSTABLE
contact_action_stimulus	INCREASE
media_for_which_designed	GAS OR LIQUID
NSN	5930-00-675-9604

COMPONENT DIAGRAM

KEY FEATURES

•

BODY DIAMETER: 1.094 INCHES MINIMUM AND 1.156 INCHES MAXIMUM IN

•

CONTACT ACTION STIMULUS: INCREASE

•

TERMINAL TYPE: TAB, SOLDER LUG

•

MOUNTING FACILITY PATTERN: TWO POSITION IN-LINE

•

PRECIOUS MATERIAL: SILVER

•

CONTACT LOAD CURRENT RATING: 10.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE

TECHNICAL CHARACTERISTICS

BODY DIAMETER	1.094 INCHES MINIMUM AND 1.156 INCHES MAXIMUM IN
OVERALL HEIGHT	1.047 INCHES NOMINAL IN
CONTACT ACTION STIMULUS	INCREASE
TERMINAL TYPE	TAB, SOLDER LUG
MOUNTING FACILITY PATTERN	TWO POSITION IN-LINE
PRECIOUS MATERIAL	SILVER
CONTACT LOAD CURRENT RATING	10.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE
CONTACT LOAD CURRENT RATING	8.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE
CONTACT LOAD CURRENT RATING	10.0 AMPERES RESISTIVE LOAD THIRD VOLTAGE
MOUNTING METHOD	BRACKET(S) AND UNTHREADED HOLE(S)

SUBSTITUTES & CROSS-REFERENCES 3

C4391-8-78Reference document

Same NSN cross-reference

Reference document — Secondary reference

C4391-8-78WReference document

Same NSN cross-reference

Reference document — Secondary reference

766319Same 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 4391-8-78?

4391-8-78 is a SWITCH,THERMOSTATIC.

What parts can replace 4391-8-78?

There are 3 known substitutes for 4391-8-78: C4391-8-78, C4391-8-78W, 766319. Substitute compatibility should be verified for your specific system.

What is the NSN for 4391-8-78?

4391-8-78 is cataloged in the U.S. Government catalog under NSN 5930-00-675-9604. This indicates validated use in U.S. government and defense supply chains.

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