Janco · Electronic Components
17-1957-1B2
Switch, Rotary
Part Number17-1957-1B2
ManufacturerJanco
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-946-3067 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Contact Voltage Rating In Volts150.0 AC AT ALTITUDE
Throw Quantity2 SINGLE SECTION REAR
Nominal Thread Size0.375 INCHES SINGLE MOUNTING FACILITY
Switch Actuator Indexing Position2 SINGLE ACTUATOR
Nonturn Device TypeSLOTTED BUSHING AT 3:00 OCLOCK
First Flat Length0.250 INCHES NOMINAL SINGLE ACTUATOR
Overall Diameter1.036 INCHES MAXIMUM
Pole Quantity2 SINGLE SECTION FRONT
Mounting MethodTHREADED BUSHING SINGLE MOUNTING FACILITY
Shaft TypeROUND, FLATTED SINGLE ACTUATOR
Vendor Part Numbers259-9497-020
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 17-1957-1B2 available?
We can source 17-1957-1B2 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 17-1957-1B2 by Janco obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 17-1957-1B2 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 17-1957-1B2?
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 17-1957-1B2?
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.