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Technical Data Sheet
M178A ✓ 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 MONITOR METER ASSEMBLY is a the manufacturer industrial component. Key specifications include overall_width: 2.750 INCHES NOMINAL IN, terminal_type: TAB W/SCREW, overall_height: 2.500 INCHES NOMINAL IN, overall_length: 6.250 INCHES NOMINAL IN, mounting_method: BASE, contact_adjustability: ACTUATION POINT ADJUSTABLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-201-4427, 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
M178A
NSN: 5930-00-201-4427
FSC: 5930
CAGE: 79230 — WAY WOLFF ASSOCIATES INC (USA)
SPECIFICATIONS
overall_width2.750 INCHES NOMINAL IN
terminal_typeTAB W/SCREW
overall_height2.500 INCHES NOMINAL IN
overall_length6.250 INCHES NOMINAL IN
mounting_methodBASE
contact_adjustabilityACTUATION POINT ADJUSTABLE
operating_temp_rating-50.0 FAHRENHEIT MINIMUM AND 120.0 FAHRENHEIT MAXIMUM DEGF
contact_action_stimulusINCREASE
contact_adjustment_range+40.00 TO 80.00 ACTUATION POINT DEGREES FAHRENHEIT
temp_sensing_element_typeINTERNAL COILED TUBE
contact_load_current_rating4.6 AMPERES RESISTIVE LOAD THIRD VOLTAGE
nonpile-up_contact_arrangement1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
NSN5930-00-201-4427
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MONITOR METER ASSEMBLY TITLE COMPONENT PN M178A MFR MONITOR METER ASSEMBLY
KEY FEATURES
TEMP SENSING ELEMENT TYPE: INTERNAL COILED TUBE
CONTACT VOLTAGE RATING IN VOLTS: 230.0 AC AT SEA LEVEL SECOND VOLTAGE
MOUNTING METHOD: BASE
CONTACT ADJUSTMENT RANGE: +40.00 TO 80.00 ACTUATION POINT DEGREES FAHRENHEIT
CONTACT ADJUSTABILITY: ACTUATION POINT ADJUSTABLE
CONTACT LOAD CURRENT RATING: 6.5 AMPERES RESISTIVE LOAD SECOND VOLTAGE
TECHNICAL CHARACTERISTICS (FLIS)
TEMP SENSING ELEMENT TYPEINTERNAL COILED TUBE
CONTACT VOLTAGE RATING IN VOLTS230.0 AC AT SEA LEVEL SECOND VOLTAGE
MOUNTING METHODBASE
CONTACT ADJUSTMENT RANGE+40.00 TO 80.00 ACTUATION POINT DEGREES FAHRENHEIT
OVERALL HEIGHT2.500 INCHES NOMINAL IN
CONTACT ADJUSTABILITYACTUATION POINT ADJUSTABLE
CONTACT LOAD CURRENT RATING6.5 AMPERES RESISTIVE LOAD SECOND VOLTAGE
CONTACT VOLTAGE RATING IN VOLTS230.0 DC AT SEA LEVEL FOURTH VOLTAGE
CONTACT VOLTAGE RATING IN VOLTS115.0 AC AT SEA LEVEL FIRST VOLTAGE
CONTACT ACTION STIMULUSINCREASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
15225Interchangeable
interchangeable cross-reference
interchangeable
SC5915-0008-1Interchangeable
interchangeable cross-reference
interchangeable
1766Interchangeable
interchangeable cross-reference
interchangeable
B-543Interchangeable
interchangeable cross-reference
interchangeable
B543B107A000014S000000Interchangeable
interchangeable cross-reference
interchangeable
H20309Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M178A?
M178A is a MONITOR METER ASSEMBLY.
What parts can replace M178A?
There are 25 known substitutes for M178A: 15225, SC5915-0008-1, 1766 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M178A?
M178A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-201-4427. This indicates validated use in U.S. government and defense supply chains.
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