Janco · Electronic Components
A45-2-2-B4S
Switch, Rotary
Part NumberA45-2-2-B4S
ManufacturerJanco
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-115-4249 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Switch Actuator Stop Device TypeFIXED STOP SINGLE ACTUATOR
Thread Series DesignatorUNEF SINGLE MOUNTING FACILITY
Shaft Diameter0.250 INCHES NOMINAL SINGLE ACTUATOR
Contact Switching ActionMAKES BEFORE BREAKS EACH SECTION REAR
Shaft TypeROUND, FLATTED SINGLE ACTUATOR
Rotor Through Connection Quantity2 EACH SECTION
Individual Section Quantity2
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
First Flat Length0.250 INCHES NOMINAL SINGLE ACTUATOR
Mounting MethodTHREADED BUSHING WITH PANEL SEAL SINGLE MOUNTING FACILITY
Operating Temp Range-65.0 TO 125.0 CELSIUS
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 A45-2-2-B4S available?
We can source A45-2-2-B4S 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 A45-2-2-B4S by Janco obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If A45-2-2-B4S 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 A45-2-2-B4S?
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 A45-2-2-B4S?
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.