Raytheon Company · Electronic Components
721857-2
Switch, Thermostatic
Part Number721857-2
ManufacturerRaytheon Company
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-122-9108 (NSN)
Federal Item NameSWITCH,THERMOSTATIC
Federal Supply Class5930 — Switches
Nonpile Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Overall Height0.690 INCHES NOMINAL
Temp Sensing Element TypeINTERNAL SENSOR
Body Height0.130 INCHES NOMINAL
Contact Voltage Rating In Volts32.0 DC AT SEA LEVEL SECOND VOLTAGE
Contact Load Current Rating3.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE
Media For Which DesignedGAS OR LIQUID
Contact Stimulus Rating175.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 172.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
Distance Between Mounting Facility1.000 INCHES NOMINAL
Overall Length1.250 INCHES NOMINAL
Body Length0.750 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 721857-2 available?
We can source 721857-2 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 721857-2 by Raytheon Company obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 721857-2 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 721857-2?
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 721857-2?
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.