Janco Corporation · Electronic Components
79-2040
Switch, Rotary
Part Number79-2040
ManufacturerJanco Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-195-2328 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
First Flat Length0.375 INCHES NOMINAL SINGLE ACTUATOR
Nominal Thread Size0.375 INCHES SINGLE MOUNTING FACILITY
Shaft Diameter0.248 INCHES MINIMUM AND 0.252 INCHES MAXIMUM SINGLE ACTUATOR
Flat Height0.209 INCHES MINIMUM AND 0.219 INCHES MAXIMUM SINGLE ACTUATOR
Switch Actuator Positioning Increm45.0 DEGREES SINGLE ACTUATOR
Nonturn Device TypeSLOTTED BUSHING AT 3:00 OCLOCK
Mounting MethodTHREADED BUSHING WITH PANEL SEAL SINGLE MOUNTING FACILITY
Shaft Length0.500 INCHES NOMINAL SINGLE ACTUATOR
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Overall Diameter1.150 INCHES NOMINAL
Contact Voltage Rating In Volts15.0 DC AT SEA LEVEL
Vendor Part NumbersGS835KH2
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 79-2040 available?
We can source 79-2040 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 79-2040 by Janco Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 79-2040 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 79-2040?
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 79-2040?
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.