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Technical Data Sheet
1823-1A ✓ Verified by PartsTable
· MRO · MRO_GENERAL
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 overall_width: 4.060 INCHES NOMINAL IN, terminal_type: SCREW, overall_height: 3.880 INCHES NOMINAL IN, overall_length: 4.060 INCHES NOMINAL IN, inside_diameter: 0.125 INCHES NOMINAL ALL CONNECTIONS IN, mounting_method: THREADED STUD(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 5930-00-253-5176, 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
MRO MRO_GENERAL 1823-1A
NSN: 5930-00-253-5176
FSC: 5930
CAGE: 85274 — DWYER INSTRUMENTS INC (USA)
SPECIFICATIONS
overall_width4.060 INCHES NOMINAL IN
terminal_typeSCREW
overall_height3.880 INCHES NOMINAL IN
overall_length4.060 INCHES NOMINAL IN
inside_diameter0.125 INCHES NOMINAL ALL CONNECTIONS IN
mounting_methodTHREADED STUD(S)
style_designatorCYLINDRICAL W/MOUNTING LUGS
nominal_thread_size0.500 INCHES SINGLE THREADED STUD IN
pressure_switch_typeDIFFERENTIAL
contact_adjustabilityACTUATION POINT ADJUSTABLE, PRESET
contact_action_stimulusINCREASE
contact_adjustment_typeEXTERNAL ACTUATION POINT SCREW
NSN5930-00-253-5176
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,PRESSURE TITLE COMPONENT PN 1823-1A MFR SWITCH,PRESSURE
KEY FEATURES
INSIDE DIAMETER: 0.125 INCHES NOMINAL ALL CONNECTIONS IN
TERMINAL TYPE: SCREW
NOMINAL THREAD SIZE: 0.500 INCHES SINGLE THREADED STUD IN
CONTACT ACTION STIMULUS: INCREASE
CONTACT ADJUSTMENT RANGE: +0.20 TO 1.00 ACTUATION POINT INCHES OF WATER
PRESSURE CONNECTOR TYPE: PLAIN, THREADED INTERNAL SECOND CONNECTION
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER0.125 INCHES NOMINAL ALL CONNECTIONS IN
TERMINAL TYPESCREW
OVERALL WIDTH4.060 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.500 INCHES SINGLE THREADED STUD IN
CONTACT ACTION STIMULUSINCREASE
OVERALL LENGTH4.060 INCHES NOMINAL IN
CONTACT ADJUSTMENT RANGE+0.20 TO 1.00 ACTUATION POINT INCHES OF WATER
PRESSURE CONNECTOR TYPEPLAIN, THREADED INTERNAL SECOND CONNECTION
THREAD SERIES DESIGNATORNPT SINGLE THREADED STUD
CONTACT ADJUSTMENT TYPEEXTERNAL ACTUATION POINT SCREW
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
18201AInterchangeable
interchangeable cross-reference
interchangeable
18201Interchangeable
interchangeable cross-reference
interchangeable
990C639H01Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1823-1A?
1823-1A is a SWITCH,PRESSURE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1823-1A?
There are 3 known substitutes for 1823-1A: 18201A, 18201, 990C639H01. Substitute compatibility should be verified for your specific system.
What is the NSN for 1823-1A?
1823-1A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-253-5176. This indicates validated use in U.S. government and defense supply chains.
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