Automatic Switch Company · Electronic Components
PB31B
Switch, Pressure
Part NumberPB31B
ManufacturerAutomatic Switch Company
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-312-3422 (NSN)
Federal Item NameSWITCH,PRESSURE
Federal Supply Class5930 — Switches
Contact Load Current Rating0.25 AMPERES RESISTIVE LOAD FOURTH VOLTAGE
Contact Adjustment TypeINTERNAL ACTUATION POINT HEX NUT
Overall Height5.344 INCHES NOMINAL
Nonpile Up Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Media For Which DesignedGAS OR LIQUID
Contact Voltage Rating In Volts125.0 AC AT SEA LEVEL FIRST VOLTAGE
Mounting MethodINPUT PORT
Features ProvidedELECTRICAL ACCESS PORT
Pressure Switch TypeGAGE
Terminal TypeSCREW
Contact Adjustment Range+2.00 TO 18.00 ACTUATION POINT POUNDS PER SQUARE INCH GAGE
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 PB31B available?
We can source PB31B 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 PB31B by Automatic Switch Company obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If PB31B 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 PB31B?
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 PB31B?
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.