Keysight Technologies Inc. · Electronic Components
310-278
Switch, Thermostatic
Part Number310-278
ManufacturerKeysight Technologies Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-790-4889 (NSN)
Federal Item NameSWITCH,THERMOSTATIC
Federal Supply Class5930 — Switches
Contact AdjustabilityACTUATION POINT NOT ADJUSTABLE
Terminal TypeTAB W/SCREW
Contact Voltage Rating In Volts250.0 AC AT SEA LEVEL SINGLE VOLTAGE
Contact Stimulus Rating140.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 120.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
Contact Load Current Rating25.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE
Mounting MethodFLUSH
Nonpile Up Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Vendor Part Numbers3103-0006, 20400DL140-2-5461-2
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 310-278 available?
We can source 310-278 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 310-278 by Keysight Technologies Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 310-278 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 310-278?
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 310-278?
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.