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Technical Data Sheet
540A-D-3 ✓ 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,PRESSURE is a the manufacturer industrial component. Key specifications include thread_class: 2A SINGLE PRESSURE CONNECTION A, overall_width: 5.500 INCHES NOMINAL IN, terminal_type: SCREW, overall_height: 6.500 INCHES NOMINAL IN, overall_length: 2.890 INCHES NOMINAL IN, mounting_method: BRACKET(S) AND UNTHREADED HOLE(S). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-01-172-6437, 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
540A-D-3
NSN: 5930-01-172-6437
FSC: 5930
CAGE: 96502 — HENRY G DIETZ CO INC (USA)
SPECIFICATIONS
thread_class2A SINGLE PRESSURE CONNECTION A
overall_width5.500 INCHES NOMINAL IN
terminal_typeSCREW
overall_height6.500 INCHES NOMINAL IN
overall_length2.890 INCHES NOMINAL IN
mounting_methodBRACKET(S) AND UNTHREADED HOLE(S)
outside_diameter0.375 INCHES NOMINAL SINGLE CONNECTION IN
style_designatorRECTANGULAR W/BRACKET
nominal_thread_size0.375 INCHES SINGLE PRESSURE CONNECTION IN
pressure_switch_typeABSOLUTE
contact_adjustabilityACTUATION POINT ADJUSTABLE
contact_action_stimulusINCREASE
NSN5930-01-172-6437
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,PRESSURE TITLE COMPONENT PN 540A-D-3 MFR SWITCH,PRESSURE
KEY FEATURES
OUTSIDE DIAMETER: 0.375 INCHES NOMINAL SINGLE CONNECTION IN
MOUNTING FACILITY PATTERN: FOUR POSITION RECTANGULAR
CONTACT ADJUSTMENT TYPE: EXTERNAL ACTUATION POINT HEX NUT
PRESSURE SWITCH TYPE: ABSOLUTE
NOMINAL THREAD SIZE: 0.375 INCHES SINGLE PRESSURE CONNECTION IN
TERMINAL TYPE: SCREW
UNTHREADED MOUNTING HOLE DIAMETER: 0.170 INCHES NOMINAL IN
CONTACT ADJUSTABILITY: ACTUATION POINT ADJUSTABLE
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.375 INCHES NOMINAL SINGLE CONNECTION IN
MOUNTING FACILITY PATTERNFOUR POSITION RECTANGULAR
CONTACT ADJUSTMENT TYPEEXTERNAL ACTUATION POINT HEX NUT
PRESSURE SWITCH TYPEABSOLUTE
NOMINAL THREAD SIZE0.375 INCHES SINGLE PRESSURE CONNECTION IN
TERMINAL TYPESCREW
UNTHREADED MOUNTING HOLE DIAMETER0.170 INCHES NOMINAL IN
CONTACT ADJUSTABILITYACTUATION POINT ADJUSTABLE
LONGEST VERTICAL DISTANCE BETWEEN MOUNTING CENTERS6.062 INCHES NOMINAL IN
OVERALL WIDTH5.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
4940-5316-0000Interchangeable
interchangeable cross-reference
interchangeable
540M0DInterchangeable
interchangeable cross-reference
interchangeable
540AInterchangeable
interchangeable cross-reference
interchangeable
8616100Interchangeable
interchangeable cross-reference
interchangeable
G645131Interchangeable
interchangeable cross-reference
interchangeable
540A JACKInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 540A-D-3?
540A-D-3 is a SWITCH,PRESSURE.
What parts can replace 540A-D-3?
There are 6 known substitutes for 540A-D-3: 4940-5316-0000, 540M0D, 540A and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 540A-D-3?
540A-D-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-01-172-6437. This indicates validated use in U.S. government and defense supply chains.
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