Electro Switch Corp. · Electronic Components
74905LC
Switch, Rotary
Part Number74905LC
ManufacturerElectro Switch Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-018-2328 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Throw Quantity2 THIRD SECTION FRONT
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL AND NONPILE-UP NONSYMMETRICAL
Contact Switching ActionBREAKS BEFORE MAKES THIRD SECTION FRONT
Style DesignatorTAP, CIRCUIT SELECTOR
Pole Quantity1 SECOND SECTION FRONT
Contact Voltage Rating In Volts125.0 AC AT SEA LEVEL
Mounting Facility PatternISOSCELES TRIANGLE SINGLE MOUNTING FACILITY
Overall Height2.906 INCHES NOMINAL
Switch Actuator Indexing Position3 SINGLE ACTUATOR
Individual Section Quantity5
Contact Load Current Rating20.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
Vendor Part Numbers4050-452 PIECE 147
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 74905LC available?
We can source 74905LC 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 74905LC by Electro Switch Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 74905LC 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 74905LC?
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 74905LC?
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.