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Technical Data Sheet
18201A ✓ 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 head_style: FLAT, slot_width: 0.1580 INCHES MINIMUM AND 0.1620 INCHES MAXIMUM IN, stem_style: SLOTTED, head_height: 0.1875 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN, neck_radius: 0.4375 INCHES NOMINAL IN, slot_length: 0.3300 INCHES MINIMUM AND 0.3380 INCHES MAXIMUM 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 5930-00-253-5176, 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 18201A
NSN: 5930-00-253-5176
FSC: 5930
CAGE: 85274 — DWYER INSTRUMENTS INC (USA)
SPECIFICATIONS
head_styleFLAT
slot_width0.1580 INCHES MINIMUM AND 0.1620 INCHES MAXIMUM IN
stem_styleSLOTTED
head_height0.1875 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN
neck_radius0.4375 INCHES NOMINAL IN
slot_length0.3300 INCHES MINIMUM AND 0.3380 INCHES MAXIMUM IN
slot_radius0.0790 INCHES MINIMUM AND 0.0810 INCHES MAXIMUM IN
stem_length5.7031 INCHES NOMINAL IN
overall_width4.060 INCHES NOMINAL IN
stem_diameter0.3720 INCHES MINIMUM AND 0.3730 INCHES MAXIMUM IN
terminal_typeSCREW
chamfer_length0.0312 INCHES NOMINAL IN
NSN5930-00-253-5176
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,PRESSURE TITLE COMPONENT PN 18201A 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 18201A?
18201A is a SWITCH,PRESSURE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 18201A?
There are 3 known substitutes for 18201A: 18201A, 18201, 990C639H01. Substitute compatibility should be verified for your specific system.
What is the NSN for 18201A?
18201A 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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