Janco · Electronic Components
EC15B5-21S
Switch, Rotary
Part NumberEC15B5-21S
ManufacturerJanco
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-245-9273 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Shaft Diameter0.247 INCHES MINIMUM AND 0.251 INCHES MAXIMUM SINGLE ACTUATOR
Thread Class2A SECOND MOUNTING FACILITY
Distance Between Mounting Facility0.888 INCHES NOMINAL SECOND MOUNTING FACILITY
Nominal Thread Size0.375 INCHES FIRST MOUNTING FACILITY
Flat Height0.216 INCHES NOMINAL SINGLE ACTUATOR
Nonturn Device Radius0.375 INCHES NOMINAL AT 12:00 OCLOCK
Overall Length3.279 INCHES NOMINAL
First Flat Length0.250 INCHES NOMINAL SINGLE ACTUATOR
Nonturn Device TypeTAB AT 3:00 OCLOCK
Individual Section Quantity5
Shaft TypeROUND, FLATTED SINGLE ACTUATOR
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 EC15B5-21S available?
We can source EC15B5-21S 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 EC15B5-21S by Janco obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If EC15B5-21S 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 EC15B5-21S?
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 EC15B5-21S?
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.