Sensata Technologies · Electronic Components
4391S5-53
Switch, Thermostatic
Part Number4391S5-53
ManufacturerSensata Technologies
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-140-0548 (NSN)
Federal Item NameSWITCH,THERMOSTATIC
Federal Supply Class5930 — Switches
Temp Sensing Element TypeINTERNAL SENSOR
Terminal TypeWIRE LEAD
Contact Load Current Rating4.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE
Contact Voltage Rating In Volts250.0 AC AT SEA LEVEL THIRD VOLTAGE
Media For Which DesignedGAS OR LIQUID
Body Diameter1.300 INCHES NOMINAL
Overall Height1.120 INCHES NOMINAL
Hazardous Locations EnvironmentalVIBRATION RESISTANT
Mounting MethodCLAMP AND TERMINAL
Contact AdjustabilityACTUATION POINT NOT ADJUSTABLE AND DEACTUATION POINT NOT ADJUSTABLE
Nonpile Up Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Vendor Part Numbers128C709H03
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 4391S5-53 available?
We can source 4391S5-53 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 4391S5-53 by Sensata Technologies obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4391S5-53 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 4391S5-53?
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 4391S5-53?
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.