Ellis & Watts International · Electronic Components
GY-5-2-1
Switch, Thermostatic
Part NumberGY-5-2-1
ManufacturerEllis & Watts International
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-852-5790 (NSN)
Federal Item NameSWITCH,THERMOSTATIC
Federal Supply Class5930 — Switches
Contact AdjustabilityDEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
Media For Which DesignedGAS OR LIQUID
Style DesignatorDISC W/FLANGE
Contact Voltage Rating In Volts28.0 DC AT SEA LEVEL SECOND VOLTAGE
Distance Between Mounting Facility1.125 INCHES NOMINAL
Overall Height0.383 INCHES NOMINAL
Contact Load Current Rating4.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE
Unthreaded Mounting Hole Diameter0.147 INCHES NOMINAL
Overall Length1.375 INCHES NOMINAL
Operating Temp Rating-20.0 FAHRENHEIT MINIMUM AND 300.0 FAHRENHEIT MAXIMUM
Contact Stimulus Rating135.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 115.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
Vendor Part NumbersSTEMC0A603
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 GY-5-2-1 available?
We can source GY-5-2-1 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 GY-5-2-1 by Ellis & Watts International obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If GY-5-2-1 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 GY-5-2-1?
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 GY-5-2-1?
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.