Sensata Technologies · Electronic Components
21490-4
Switch, Thermostatic
Part Number21490-4
ManufacturerSensata Technologies
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-055-9229 (NSN)
Federal Item NameSWITCH,THERMOSTATIC
Federal Supply Class5930 — Switches
Terminal TypeCONNECTOR, RECEPTACLE
Overall Length2.783 INCHES MAXIMUM
Thread Class2A SINGLE THREADED BUSHING
Contact Action StimulusINCREASE
Thread Quantity Per Inch14 SINGLE THREADED BUSHING
Body Diameter0.660 INCHES MAXIMUM
Contact Voltage Rating In Volts250.0 AC AT SEA LEVEL FIRST VOLTAGE
Contact Load Current Rating6.5 AMPERES RESISTIVE LOAD THIRD VOLTAGE
Operating Temp Rating-40.0 FAHRENHEIT MINIMUM AND 185.0 FAHRENHEIT MAXIMUM
Mounting MethodTHREADED BUSHING
Nominal Thread Size0.875 INCHES SINGLE THREADED BUSHING
Vendor Part Numbers10105980-4
ProducttraceabilityNo
RohscompliantTBA
IscanonicalY
Hazardousfalse
RohsphthalatescompliantTBA
UseccnUnknown
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 21490-4 available?
We can source 21490-4 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 21490-4 by Sensata Technologies obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21490-4 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 21490-4?
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 21490-4?
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.