Electro Switch Corp. · Electronic Components
7890-3181
Switch, Rotary
Part Number7890-3181
ManufacturerElectro Switch Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-911-2791 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Mounting MethodTHREADED BUSHING SINGLE MOUNTING FACILITY
Contact Voltage Rating In Volts28.0 DC AT SEA LEVEL
Precious MaterialSILVER
Individual Section Quantity4
Nonturn Device TypeTAB AT 10:00 OCLOCK
Shaft Diameter0.250 INCHES NOMINAL SINGLE ACTUATOR
Nominal Thread Size0.375 INCHES SINGLE MOUNTING FACILITY
Style DesignatorCIRCULAR WAFER, BUSHING MOUNT
Overall Width1.609 INCHES NOMINAL
Contact Load Current Rating1.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
Switch Contact Basic DesignNONPILE-UP NONSYMMETRICAL
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 7890-3181 available?
We can source 7890-3181 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 7890-3181 by Electro Switch Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 7890-3181 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 7890-3181?
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 7890-3181?
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.