Dwyer Instruments · Electronic Components
1823-1A
Switch, Pressure
Part Number1823-1A
ManufacturerDwyer Instruments
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-253-5176 (NSN)
Federal Item NameSWITCH,PRESSURE
Federal Supply Class5930 — Switches
Overall Length4.060 INCHES NOMINAL
Contact Action StimulusINCREASE
Contact Adjustment Range+0.20 TO 1.00 ACTUATION POINT INCHES OF WATER
Inside Diameter0.125 INCHES NOMINAL ALL CONNECTIONS
Terminal TypeSCREW
Overall Width4.060 INCHES NOMINAL
Thread Series DesignatorNPT SINGLE THREADED STUD
Nominal Thread Size0.500 INCHES SINGLE THREADED STUD
Contact Adjustment TypeEXTERNAL ACTUATION POINT SCREW
Pressure Connector TypePLAIN, THREADED INTERNAL SECOND CONNECTION
Overall Height3.880 INCHES NOMINAL
Vendor Part Numbers990C639H01
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is 1823-1A available?
We can source 1823-1A even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is 1823-1A by Dwyer Instruments obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1823-1A has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like 1823-1A?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for 1823-1A?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.