Janco · Electronic Components
3-1900-4-B16C
Switch, Rotary
Part Number3-1900-4-B16C
ManufacturerJanco
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-910-0105 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Pole Quantity4 EACH SECTION FRONT
Thread Class2A SINGLE MOUNTING FACILITY
Contact Switching ActionBREAKS BEFORE MAKES EACH SECTION FRONT
Overall Diameter1.500 INCHES NOMINAL
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Hazardous Locations EnvironmentalDUSTPROOF
Contact Load Current Rating5.0 MILLIAMPERES RESISTIVE LOAD AC AT SEA LEVEL
Throw Quantity16 EACH SECTION FRONT
First Flat Length0.250 INCHES NOMINAL SINGLE ACTUATOR
Nominal Thread Size0.375 INCHES SINGLE MOUNTING FACILITY
Thread Length0.430 INCHES NOMINAL SINGLE MOUNTING FACILITY
Vendor Part NumbersGS835A1
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 3-1900-4-B16C available?
We can source 3-1900-4-B16C 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 3-1900-4-B16C by Janco obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3-1900-4-B16C 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 3-1900-4-B16C?
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 3-1900-4-B16C?
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.