Electro Switch Corp. · Electronic Components
393S21P
Switch, Rotary
Part Number393S21P
ManufacturerElectro Switch Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-761-6781 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Mounting MethodTHREADED BUSHING SINGLE MOUNTING FACILITY
Contact Load Current Rating7.5 AMPERES RESISTIVE LOAD LOWEST AC VOLTAGE RATING AT SEA LEVEL
Contact Switching ActionBREAKS BEFORE MAKES SINGLE SECTION REAR
Style DesignatorTAP, SQUARE FRAME
Contact Voltage Rating In Volts240.0 HIGHEST AC VOLTAGE RATING AT SEA LEVEL
Thread Class2A SINGLE MOUNTING FACILITY
Throw Quantity3 SINGLE SECTION REAR
Overall Height1.500 INCHES NOMINAL
Nonturn Device TypeSLOTTED BUSHING AT 12:00 OCLOCK
Pole Quantity1 SINGLE SECTION REAR
Individual Section Quantity1
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 393S21P available?
We can source 393S21P 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 393S21P by Electro Switch Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 393S21P 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 393S21P?
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 393S21P?
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.