Therm-O-Disc Incorporated · Electronic Components
S4843
Switch, Thermostatic
Part NumberS4843
ManufacturerTherm-O-Disc Incorporated
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-636-0981 (NSN)
Federal Item NameSWITCH,THERMOSTATIC
Federal Supply Class5930 — Switches
Nonpile Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Body Width1.594 INCHES NOMINAL
Unthreaded Mounting Hole Diameter0.176 INCHES NOMINAL
Contact Voltage Rating In Volts115.0 DC AT SEA LEVEL SECOND VOLTAGE
Contact Load Current Rating40.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE
Contact AdjustabilityACTUATION POINT NOT ADJUSTABLE, MANUAL RESET
Style DesignatorRECTANGULAR W/BRACKET
Media For Which DesignedGAS OR LIQUID
Contact Action StimulusINCREASE
Mounting Facility PatternTWO POSITION IN-LINE
Terminal TypeSCREW
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 S4843 available?
We can source S4843 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 S4843 by Therm-O-Disc Incorporated obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If S4843 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 S4843?
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 S4843?
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.