Janco · Electronic Components
1905-3-C12C
Switch, Rotary
Part Number1905-3-C12C
ManufacturerJanco
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-347-1588 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Precious MaterialSILVER
Individual Section Quantity12
Overall Diameter1.036 INCHES MAXIMUM
Thread Class2A SINGLE MOUNTING FACILITY
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Switch Actuator Positioning Increm30.0 DEGREES SINGLE ACTUATOR
Terminal TypeTAB, SOLDER LUG
Overall Length5.122 INCHES NOMINAL
Contact Load Current Rating500.0 MILLIAMPERES INDUCTIVE LOAD AND 1.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL
Precious Material And LocationCONTACTS AND ROTOR BLADES SILVER
Style DesignatorTAP, CIRCULAR, BUSHING MOUNT
Vendor Part NumbersGS835U3C12NC
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 1905-3-C12C available?
We can source 1905-3-C12C 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 1905-3-C12C by Janco obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1905-3-C12C 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 1905-3-C12C?
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 1905-3-C12C?
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.