Janco · Electronic Components
A20-1-1-B18SC
Switch, Rotary
Part NumberA20-1-1-B18SC
ManufacturerJanco
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-210-9136 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Thread Series DesignatorUNS SINGLE MOUNTING FACILITY
Contact Voltage Rating In Volts28.0 DC AT SEA LEVEL
Contact Switching ActionMAKES BEFORE BREAKS SINGLE SECTION REAR
Flat Height0.210 INCHES NOMINAL SINGLE ACTUATOR
Switch Actuator Positioning Increm20.0 DEGREES SINGLE ACTUATOR
Thread Class2A SINGLE MOUNTING FACILITY
Overall Length1.750 INCHES MAXIMUM
Terminal TypeTAB, SOLDER LUG
Nonturn Device Radius0.372 INCHES NOMINAL AT 12:00 OCLOCK
Nominal Thread Size0.469 INCHES SINGLE MOUNTING FACILITY
Contact Load Current Rating3.0 AMPERES RESISTIVE LOAD AND 2.0 MILLIAMPERES INDUCTIVE LOAD DC AT SEA LEVEL
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 A20-1-1-B18SC available?
We can source A20-1-1-B18SC 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 A20-1-1-B18SC by Janco obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If A20-1-1-B18SC 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 A20-1-1-B18SC?
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 A20-1-1-B18SC?
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.