Electro Switch Corp. · Electronic Components
33903LK
Switch, Rotary
Part Number33903LK
ManufacturerElectro Switch Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-773-1990 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Overall Diameter2.000 INCHES NOMINAL
Switch Actuator Stop Device TypeFIXED STOP SINGLE ACTUATOR
Terminal TypeSCREW
Knob Manufacturer Code82121
Thread Class2A SINGLE MOUNTING FACILITY
Individual Section Quantity3
Contact Voltage Rating In Volts115.0 AC AT SEA LEVEL
Precious MaterialSILVER
Switch Actuator Indexing Position3 SINGLE ACTUATOR
Style DesignatorTAP, CIRCULAR FRAME
Mounting Facility PatternTHREE POSITION CIRCULAR SINGLE MOUNTING FACILITY
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 33903LK available?
We can source 33903LK 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 33903LK by Electro Switch Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 33903LK 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 33903LK?
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 33903LK?
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.