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BAR891 — SWITCH,THERMOSTATIC

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

BAR891: SWITCH,THERMOSTATIC.

The SWITCH,THERMOSTATIC is a the manufacturer industrial component. Key specifications include bulb_length: 0.438 INCHES NOMINAL IN, bulb_diameter: 0.125 INCHES NOMINAL IN, overall_width: 1.906 INCHES NOMINAL IN, terminal_type: TAB, SOLDER LUG, overall_height: 3.156 INCHES NOMINAL IN, overall_length: 3.375 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5930-00-941-6694, 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
BAR891
NSN: 5930-00-941-6694
FSC: 5930 — Switches
CAGE: 10018 — AVAHO ACQUISITION CORP DBA IMPAC (USA)
SPECIFICATIONS
bulb_length0.438 INCHES NOMINAL IN
bulb_diameter0.125 INCHES NOMINAL IN
overall_width1.906 INCHES NOMINAL IN
terminal_typeTAB, SOLDER LUG
overall_height3.156 INCHES NOMINAL IN
overall_length3.375 INCHES NOMINAL IN
mounting_methodFLANGE
capillary_tube_length19.375 INCHES NOMINAL IN
contact_adjustabilityACTUATION POINT ADJUSTABLE, PRESET
contact_action_stimulusINCREASE
contact_stimulus_rating4.00 DIFFERENTIAL POINT NOMINAL DEGREES FAHRENHEIT
contact_adjustment_range+67.00 TO 83.00 ACTUATION POINT DEGREES FAHRENHEIT
NSN5930-00-941-6694
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,THERMOSTATIC TITLE COMPONENT PN BAR891 MFR SWITCH,THERMOSTATIC
KEY FEATURES
•
CONTACT ACTION STIMULUS: INCREASE
•
TERMINAL TYPE: TAB, SOLDER LUG
•
BULB LENGTH: 0.438 INCHES NOMINAL IN
•
BULB DIAMETER: 0.125 INCHES NOMINAL IN
•
CONTACT LOAD CURRENT RATING: 25.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE
•
MOUNTING METHOD: FLANGE
•
CONTACT ADJUSTMENT RANGE: +67.00 TO 83.00 ACTUATION POINT DEGREES FAHRENHEIT
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT3.156 INCHES NOMINAL IN
CONTACT ACTION STIMULUSINCREASE
TERMINAL TYPETAB, SOLDER LUG
BULB LENGTH0.438 INCHES NOMINAL IN
BULB DIAMETER0.125 INCHES NOMINAL IN
CONTACT LOAD CURRENT RATING25.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE
MOUNTING METHODFLANGE
CONTACT ADJUSTMENT RANGE+67.00 TO 83.00 ACTUATION POINT DEGREES FAHRENHEIT
TEMP SENSING ELEMENT TYPECAPILLARY TUBE-BULB
OVERALL LENGTH3.375 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
A14-109Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 BAR891?
BAR891 is a SWITCH,THERMOSTATIC.
What parts can replace BAR891?
There is 1 known substitute for BAR891: A14-109. Substitute compatibility should be verified for your specific system.
What is the NSN for BAR891?
BAR891 is cataloged in the U.S. Government catalog under NSN 5930-00-941-6694. 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.