Janco · Electronic Components
4M45E2-2S4
Switch, Rotary
Part Number4M45E2-2S4
ManufacturerJanco
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-180-2872 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Overall Length2.211 INCHES NOMINAL
Overall Height0.985 INCHES MINIMUM AND 1.180 INCHES MAXIMUM
Overall Diameter1.000 INCHES MINIMUM AND 1.306 INCHES MAXIMUM
First Flat Length0.250 INCHES NOMINAL ALL ACTUATORS
Thread Series DesignatorUNEF SINGLE MOUNTING FACILITY
Contact Voltage Rating In Volts115.0 AC AT SEA LEVEL
Shaft Length0.437 INCHES NOMINAL ALL ACTUATORS
Shaft Diameter0.250 INCHES NOMINAL ALL ACTUATORS
Style DesignatorCIRCULAR WAFER, BUSHING MOUNT
Nominal Thread Size0.375 INCHES SINGLE MOUNTING FACILITY
Pole Quantity2 EACH SECTION FRONT
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 4M45E2-2S4 available?
We can source 4M45E2-2S4 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 4M45E2-2S4 by Janco obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4M45E2-2S4 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 4M45E2-2S4?
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 4M45E2-2S4?
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.