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Electro Switch Corp.  · Electronic Components

21202A-S

Switch, Rotary

Part Number21202A-S
ManufacturerElectro Switch Corp.
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Overall Width2.813 INCHES NOMINAL
Thread Class2B SINGLE MOUNTING FACILITY
Knob Manufacturer Part NumberA
Knob Manufacturer Code82121
Hazardous Locations EnvironmentalEXPLOSION PROOF
Overall Length3.563 INCHES NOMINAL
Individual Section Quantity2
Thread Quantity Per Inch24 SINGLE MOUNTING FACILITY
Contact Voltage Rating In Volts28.0 LOWEST DC VOLTAGE RATING AT SEA LEVEL
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Terminal TypeTAB W/SCREW
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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

Frequently asked

Is 21202A-S available?
We can source 21202A-S 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 21202A-S by Electro Switch Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21202A-S 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 21202A-S?
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 21202A-S?
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.