Dwyer Instruments Inc. · Electronic Components
DA51-3
Switch, Pressure
Part NumberDA51-3
ManufacturerDwyer Instruments Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-103-6392 (NSN)
Federal Item NameSWITCH,PRESSURE
Federal Supply Class5930 — Switches
Pressure Switch TypeABSOLUTE
Contact AdjustabilityDEACTUATION POINT ADJUSTABLE AND ACTUATION POINT ADJUSTABLE
Nonpile Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Contact Action StimulusINCREASE
Contact Voltage Rating In Volts230.0 DC AT SEA LEVEL FOURTH VOLTAGE
Mounting Facility Circle Radius3.250 INCHES NOMINAL
Mounting MethodFLANGE
Thread Series DesignatorNPT SINGLE PRESSURE CONNECTION
Pressure Connector TypePLAIN, THREADED EXTERNAL SINGLE CONNECTION
Mounting Facility PatternTHREE POSITION CIRCULAR
Nominal Thread Size0.250 INCHES SINGLE PRESSURE CONNECTION
Vendor Part Numbers500-0153
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 DA51-3 available?
We can source DA51-3 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 DA51-3 by Dwyer Instruments Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If DA51-3 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 DA51-3?
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 DA51-3?
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.