Electro Switch Corp. · Electronic Components
WS121
Switch Section, Rotary
Part NumberWS121
ManufacturerElectro Switch Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-020-2825 (NSN)
Federal Item NameSWITCH SECTION,ROTARY
Federal Supply Class5930 — Switches
Contact Switching ActionBREAKS BEFORE MAKES SINGLE SECTION REAR
Throw Quantity16 SINGLE SECTION REAR
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Mounting MethodSTRUT SINGLE MOUNTING FACILITY
Pole Quantity1 SINGLE SECTION REAR
Vendor Part Numbers4-1182-521
Cancelled NSN5930-00-792-0799 (cancelled)
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 WS121 available?
We can source WS121 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 WS121 by Electro Switch Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If WS121 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 WS121?
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 WS121?
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.