Grayhill · Electronic Components
M3786/39-QEB
Military Qualified Rotary Switch
Part NumberM3786/39-QEB
ManufacturerGrayhill
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-399-3324 (NSN)
Federal Item NameSWITCH,ROTARY
Terminal TypeTAB, SOLDER LUG
Mounting MethodTHREADED BUSHING SINGLE MOUNTING FACILITY
Overall Length1.636 INCHES NOMINAL
Overall Diameter0.687 INCHES NOMINAL
Nominal Thread Size0.375 INCHES SINGLE MOUNTING FACILITY
Thread Class2A SINGLE MOUNTING FACILITY
Contact Switching ActionBREAKS BEFORE MAKES EACH SECTION REAR
Style DesignatorTAP, CIRCULAR, BUSHING MOUNT
Pole Quantity1 EACH SECTION FRONT
Contact Voltage Rating In Volts115.0 AC AT SEA LEVEL; 28.0 DC AT SEA LEVEL
Federal Supply Class5930 — Switches
Test Data Document81349-MIL-S-3786 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DAT
Individual Section Quantity2
Shaft TypeROUND, FLATTED SINGLE ACTUATOR
Shaft Diameter0.250 INCHES NOMINAL SINGLE ACTUATOR
First Flat Length0.250 INCHES NOMINAL SINGLE ACTUATOR
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 M3786/39-QEB available?
We can source M3786/39-QEB 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 M3786/39-QEB by Grayhill obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M3786/39-QEB 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 M3786/39-QEB?
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 M3786/39-QEB?
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.