Therm-O-Disc Incorporated · Electronic Components
37T21
Switch, Thermostatic
Part Number37T21
ManufacturerTherm-O-Disc Incorporated
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-174-0946 (NSN)
Federal Item NameSWITCH,THERMOSTATIC
Federal Supply Class5930 — Switches
Terminal TypeWIRE LEAD
Contact Stimulus Rating50.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 30.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
Nonpile Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Mounting MethodBRACKET(S)
Longest Horizontal Distance Betwee1.560 INCHES NOMINAL
Overall Length2.120 INCHES NOMINAL
Contact Action StimulusINCREASE
Media For Which DesignedGAS
Contact AdjustabilityDEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
Mounting Facility PatternTWO POSITION IN-LINE
Body Height1.030 INCHES NOMINAL
Vendor Part NumbersWR50X18, 11-641927P9
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 37T21 available?
We can source 37T21 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 37T21 by Therm-O-Disc Incorporated obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 37T21 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 37T21?
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 37T21?
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.