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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-B-414789
Switch, Rotary
Part NumberSM-B-414789
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-884-2579 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Detent Rotational Torque Range+1.000 TO 3.000 INCH-POUNDS SINGLE ACTUATOR
Test Data Document81349-MIL-S-3786 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DAT
Contact Load Current Rating2.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL
Shaft TypeROUND, FLATTED SINGLE ACTUATOR
Pole Quantity1 SINGLE SECTION FRONT
Contact Switching ActionBREAKS BEFORE MAKES SINGLE SECTION REAR
Overall Length1.797 INCHES NOMINAL
Shaft Diameter0.250 INCHES NOMINAL SINGLE ACTUATOR
First Flat Length0.281 INCHES NOMINAL SINGLE ACTUATOR
Contact Voltage Rating In Volts28.0 DC AT SEA LEVEL
Overall Height1.000 INCHES NOMINAL
Vendor Part Numbers5-21521-767
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 SM-B-414789 available?
We can source SM-B-414789 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 SM-B-414789 by US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SM-B-414789 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 SM-B-414789?
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 SM-B-414789?
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.