Shallco, Inc. · Electronic Components
121-BB-3
Switch, Rotary
Part Number121-BB-3
ManufacturerShallco, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-981-9347 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Contact Switching ActionBREAKS BEFORE MAKES SINGLE SECTION PERIPHERY
Throw Quantity3 SINGLE SECTION PERIPHERY
Switch Actuator Indexing Position3 SINGLE ACTUATOR
Individual Section Quantity1
Shaft Length0.906 INCHES MINIMUM AND 0.969 INCHES MAXIMUM SINGLE ACTUATOR
Shaft TypeROUND SINGLE ACTUATOR
Switch Actuator Positioning Increm30.0 DEGREES SINGLE ACTUATOR
Overall Height1.375 INCHES NOMINAL
Pole Quantity2 SINGLE SECTION PERIPHERY
Contact Voltage Rating In Volts115.0 AC AT SEA LEVEL
Mounting Facility PatternTWO POSITION IN-LINE SINGLE MOUNTING FACILITY
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 121-BB-3 available?
We can source 121-BB-3 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 121-BB-3 by Shallco, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 121-BB-3 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 121-BB-3?
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 121-BB-3?
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.