Electro Switch Corp. · Electronic Components
74203B-3
Switch, Rotary
Part Number74203B-3
ManufacturerElectro Switch Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-025-2228 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Shortest Horizontal Distance Betwe1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY
Longest Vertical Distance Between2.188 INCHES NOMINAL SINGLE MOUNTING FACILITY
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Pole Quantity2 EACH SECTION REAR
Contact Switching ActionBREAKS BEFORE MAKES EACH SECTION REAR
Throw Quantity2 EACH SECTION REAR
Longest Horizontal Distance Betwee2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY
Hazardous Locations EnvironmentalDUSTPROOF
Knob Manufacturer Code82121
Individual Section Quantity3
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 74203B-3 available?
We can source 74203B-3 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 74203B-3 by Electro Switch Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 74203B-3 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 74203B-3?
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 74203B-3?
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.