Northrop Grumman Systems Corporation · Electronic Components
3221-12
Switch, Rotary
Part Number3221-12
ManufacturerNorthrop Grumman Systems Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-327-7543 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Contact Load Current Rating700.0 MILLIAMPERES RESISTIVE LOAD DC AT SEA LEVEL
Thread Class2A SINGLE MOUNTING FACILITY
Switch Actuator Stop Device TypeFIXED STOP SINGLE ACTUATOR
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Mounting MethodTHREADED BUSHING SINGLE MOUNTING FACILITY
Precious MaterialSILVER
Thread Length0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY
Pole Quantity4 SINGLE SECTION FRONT
Switch Actuator Indexing Position3 SINGLE ACTUATOR
Precious Material And LocationCONTACTS SILVER
Contact Voltage Rating In Volts300.0 AC AT SEA LEVEL
Vendor Part NumbersB-120475-01
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 3221-12 available?
We can source 3221-12 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 3221-12 by Northrop Grumman Systems Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3221-12 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 3221-12?
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 3221-12?
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.