Raytheon · Electronic Components
721856-38
Switch, Thermostatic
Part Number721856-38
ManufacturerRaytheon
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-963-1607 (NSN)
Federal Item NameSWITCH,THERMOSTATIC
Federal Supply Class5930 — Switches
Precious Material And LocationCONTACTS SILVER
Mounting Facility PatternTWO POSITION IN-LINE
Overall Height0.300 INCHES MAXIMUM
Precious MaterialSILVER
Mounting MethodBRACKET(S) AND SLOT
Contact Voltage Rating In Volts120.0 AC AT SEA LEVEL FIRST VOLTAGE
Contact AdjustabilityACTUATION POINT NOT ADJUSTABLE
Nonpile Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Contact Action StimulusINCREASE
Temp Sensing Element TypeINTERNAL SENSOR
Operating Temp Rating-65.0 FAHRENHEIT MINIMUM AND 450.0 FAHRENHEIT MAXIMUM
Vendor Part NumbersM221F-149-0305-21
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 721856-38 available?
We can source 721856-38 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 721856-38 by Raytheon obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 721856-38 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 721856-38?
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 721856-38?
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.