Electro Switch Corp. · Electronic Components
2421C
Switch, Rotary
Part Number2421C
ManufacturerElectro Switch Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-186-2417 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Terminal TypeTAB W/SCREW
Style DesignatorTAP, CIRCUIT SELECTOR
Contact Load Current Rating20.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
Shortest Horizontal Distance Betwe1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY
Throw Quantity2 EACH SECTION REAR
Features ProvidedACTUATOR KNOB
Longest Vertical Distance Between2.188 INCHES NOMINAL SINGLE MOUNTING FACILITY
Mounting Facility PatternISOSCELES TRIANGLE SINGLE MOUNTING FACILITY
Individual Section Quantity2
Knob Manufacturer Code82121
Overall Height2.906 INCHES NOMINAL
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 2421C available?
We can source 2421C 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 2421C by Electro Switch Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 2421C 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 2421C?
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 2421C?
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.