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Technical Data Sheet
A-91-378 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The SWITCH,SENSITIVE is a the manufacturer industrial component. Key specifications include material: PLASTIC CASE, body_style: HOLE MOUNTED, body_width: 0.688 INCHES NOMINAL IN, body_height: 0.781 INCHES NOMINAL IN, body_length: 1.938 INCHES NOMINAL IN, overall_width: 0.688 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-578-2735, 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
A-91-378
NSN: 5930-00-578-2735
FSC: 5930
CAGE: 08997 — ULTRASONIC CORP (USA)
SPECIFICATIONS
materialPLASTIC CASE
body_styleHOLE MOUNTED
body_width0.688 INCHES NOMINAL IN
body_height0.781 INCHES NOMINAL IN
body_length1.938 INCHES NOMINAL IN
overall_width0.688 INCHES NOMINAL IN
actuator_styleROLLER ARM
inclosure_typeFULLY INCLOSED
overall_length2.406 INCHES NOMINAL IN
special_featuresINSULATOR INCLUDED
actuator_movement0.062 PRETRAVEL INCHES MAXIMUM AND 0.031 OVERTRAVEL INCHES MINIMUM AND 0.032 DIFFERENTIAL INCHES MAXIMUM
switch_release_force0.5 OUNCES MINIMUM OZ
NSN5930-00-578-2735
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,SENSITIVE TITLE COMPONENT PN A-91-378 MFR SWITCH,SENSITIVE
KEY FEATURES
CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE: 25.000 AMPERES RESISTIVE DC AND 2.000 AMPERES RESISTIVE AC
ACTUATOR MOVEMENT: 0.062 PRETRAVEL INCHES MAXIMUM AND 0.031 OVERTRAVEL INCHES MINIMUM AND 0.032 DIFFERENTIAL INCHES MAXIMUM
MATERIAL: PLASTIC CASE
MAXIMUM VOLTAGE RATING IN VOLTS: 600.0 AC AND 28.0 DC
UNTHREADED MOUNTING HOLE DIAMETER: 0.139 INCHES NOMINAL IN
ACTUATOR FREE POSITION HEIGHT: 1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
INCLOSURE TYPE: FULLY INCLOSED
ACTUATOR ROLLER DIAMETER: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE25.000 AMPERES RESISTIVE DC AND 2.000 AMPERES RESISTIVE AC
ACTUATOR MOVEMENT0.062 PRETRAVEL INCHES MAXIMUM AND 0.031 OVERTRAVEL INCHES MINIMUM AND 0.032 DIFFERENTIAL INCHES MAXIMUM
MATERIALPLASTIC CASE
MAXIMUM VOLTAGE RATING IN VOLTS600.0 AC AND 28.0 DC
UNTHREADED MOUNTING HOLE DIAMETER0.139 INCHES NOMINAL IN
ACTUATOR FREE POSITION HEIGHT1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
INCLOSURE TYPEFULLY INCLOSED
ACTUATOR ROLLER DIAMETER0.375 INCHES NOMINAL IN
ACTUATOR STYLEROLLER ARM
ACTUATOR ROLLER WIDTH0.188 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
102-1456Interchangeable
interchangeable cross-reference
interchangeable
41286Interchangeable
interchangeable cross-reference
interchangeable
ALB227Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-91-378?
A-91-378 is a SWITCH,SENSITIVE.
What parts can replace A-91-378?
There are 3 known substitutes for A-91-378: 102-1456, 41286, ALB227. Substitute compatibility should be verified for your specific system.
What is the NSN for A-91-378?
A-91-378 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-578-2735. This indicates validated use in U.S. government and defense supply chains.
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