Janco · Electronic Components
12-1900M-9-18N
Switch, Rotary
Part Number12-1900M-9-18N
ManufacturerJanco
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-473-3458 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Flat Height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM SINGLE ACTUATOR
Pole Quantity1 EACH SECTION FRONT
Switch Actuator Indexing Position18 SINGLE ACTUATOR
Rotor Through Connection Quantity1 EACH SECTION
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Hazardous Locations EnvironmentalEXPLOSION PROOF
Overall Diameter2.000 INCHES MAXIMUM
Shaft Flat Slot Angular Location180.0 DEGREES FROM CONTACT POSITION 1 SINGLE ACTUATOR
Contact Voltage Rating In Volts115.0 AC AT SEA LEVEL
Mounting MethodTHREADED BUSHING SINGLE MOUNTING FACILITY
Terminal TypeTAB, SOLDER LUG
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 12-1900M-9-18N available?
We can source 12-1900M-9-18N 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 12-1900M-9-18N by Janco obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 12-1900M-9-18N 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 12-1900M-9-18N?
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 12-1900M-9-18N?
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.