Electro Switch Corp. · Electronic Components
123902LL
Switch, Rotary
Part Number123902LL
ManufacturerElectro Switch Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-783-7822 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Switch Actuator Positioning Increm90.0 DEGREES SINGLE ACTUATOR
Features ProvidedDUMMY SECTION AND ACTUATOR KNOB
Mounting Facility PatternFOUR POSITION RECTANGULAR SINGLE MOUNTING FACILITY
Contact Load Current Rating30.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
Knob Manufacturer Part NumberA
Switch Actuator Indexing Position3 SINGLE ACTUATOR
Overall Width2.781 INCHES NOMINAL
Overall Height2.781 INCHES NOMINAL
Longest Vertical Distance Between2.281 INCHES NOMINAL SINGLE MOUNTING FACILITY
Contact Voltage Rating In Volts500.0 AC AT SEA LEVEL
Switch Actuator Stop Device TypeFIXED STOP SINGLE ACTUATOR
Vendor Part NumbersH519APC21
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 123902LL available?
We can source 123902LL 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 123902LL by Electro Switch Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 123902LL 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 123902LL?
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 123902LL?
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.