Electroswitch · Electronic Components
121902MM
Switch, Rotary
Part Number121902MM
ManufacturerElectroswitch
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-089-0515 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Contact Load Current Rating10.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
Switch Actuator Indexing Position3 SINGLE ACTUATOR
Thread Class2B SINGLE MOUNTING FACILITY
Thread Quantity Per Inch24 SINGLE MOUNTING FACILITY
Shaft Diameter0.250 INCHES NOMINAL SINGLE ACTUATOR
Nominal Thread Size0.190 INCHES SINGLE MOUNTING FACILITY
Pole Quantity1 EACH SECTION FRONT
Switch Actuator Positioning Increm90.0 DEGREES SINGLE ACTUATOR
Overall Length2.750 INCHES NOMINAL
Overall Width2.312 INCHES NOMINAL
Individual Section Quantity2
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 121902MM available?
We can source 121902MM 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 121902MM by Electroswitch obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 121902MM 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 121902MM?
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 121902MM?
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.