Raytheon Company · Electronic Components
721856-43
Switch, Thermostatic
Part Number721856-43
ManufacturerRaytheon Company
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-989-0875 (NSN)
Federal Item NameSWITCH,THERMOSTATIC
Federal Supply Class5930 — Switches
Contact Adjustment TypeEXTERNAL DEACTUATION POINT SCREW AND EXTERNAL ACTUATION POINT SCREW
Media For Which DesignedGAS OR LIQUID
Mounting Facility PatternTWO POSITION IN-LINE
Contact Voltage Rating In Volts28.0 DC AT SEA LEVEL SECOND VOLTAGE
Nonpile Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Distance Between Mounting Facility1.000 INCHES NOMINAL
Unthreaded Mounting Hole Diameter0.156 INCHES NOMINAL
Overall Width0.401 INCHES NOMINAL
Contact AdjustabilityDEACTUATION POINT ADJUSTABLE, PRESET AND ACTUATION POINT ADJUSTABLE, PRESET
Terminal TypeTAB, SOLDER LUG
Body Height0.251 INCHES NOMINAL
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 721856-43 available?
We can source 721856-43 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 721856-43 by Raytheon Company obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 721856-43 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 721856-43?
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 721856-43?
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.