Janco Corporation · Electronic Components
79-2157
Switch, Rotary
Part Number79-2157
ManufacturerJanco Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-407-8900 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Throw Quantity4 SINGLE SECTION FRONT
Contact Load Current Rating85.0 AMPERES RESISTIVE LOAD AND 2.5 AMPERES INDUCTIVE LOAD AC AT SEA LEVEL
Overall Length2.220 INCHES NOMINAL
Nominal Thread Size0.375 INCHES SINGLE MOUNTING FACILITY
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Switch Actuator Positioning Increm45.0 DEGREES SINGLE ACTUATOR
Thread Class2A SINGLE MOUNTING FACILITY
Contact Switching ActionBREAKS BEFORE MAKES SINGLE SECTION FRONT
Switch Actuator Indexing Position4 SINGLE ACTUATOR
Shaft TypeROUND, FLATTED SINGLE ACTUATOR
Individual Section Quantity1
ESD/EMICode A — ESD/EMI sensitive item
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 79-2157 available?
We can source 79-2157 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 79-2157 by Janco Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 79-2157 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 79-2157?
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 79-2157?
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.