Sensata Technologies · Electronic Components
21729-1
Switch, Thermostatic
Part Number21729-1
ManufacturerSensata Technologies
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-068-7936 (NSN)
Federal Item NameSWITCH,THERMOSTATIC
Federal Supply Class5930 — Switches
Contact Action StimulusDECREASE
Overall Length1.300 INCHES MAXIMUM
Contact Stimulus Rating8.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 23.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
Contact AdjustabilityDEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
Contact Voltage Rating In Volts28.0 DC AT SEA LEVEL SINGLE VOLTAGE
Contact Load Current Rating3.0 AMPERES RESISTIVE LOAD AND 0.5 AMPERES LAMP LOAD SINGLE VOLTAGE
Style DesignatorDISC W/FLANGE
Media For Which DesignedGAS OR LIQUID
Mounting MethodFLANGE AND SLOT
Mounting Slot Width0.166 INCHES NOMINAL
Terminal TypeCONNECTOR, RECEPTACLE
Vendor Part Numbers975-0097-003, 644792-105
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 21729-1 available?
We can source 21729-1 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 21729-1 by Sensata Technologies obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21729-1 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 21729-1?
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 21729-1?
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.