Janco · Electronic Components
6-1903
Switch, Rotary
Part Number6-1903
ManufacturerJanco
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-962-4491 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Overall Diameter2.000 INCHES NOMINAL
Switch Actuator Indexing Position24 SINGLE ACTUATOR
Hazardous Locations EnvironmentalEXPLOSION PROOF
Overall Length2.500 INCHES NOMINAL
Shaft TypeROUND, FLATTED SINGLE ACTUATOR
Nonturn Device Radius0.372 INCHES NOMINAL AT 12:00 OCLOCK
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Thread Length0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY
Shaft Length0.750 INCHES NOMINAL SINGLE ACTUATOR
Throw Quantity24 EACH SECTION REAR
Contact Voltage Rating In Volts28.0 DC AT SEA LEVEL
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 6-1903 available?
We can source 6-1903 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 6-1903 by Janco obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 6-1903 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 6-1903?
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 6-1903?
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.