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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-A-937901
Switch, Rotary
Part NumberSM-A-937901
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-109-7572 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Contact Load Current Rating2.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL
Style DesignatorCIRCULAR WAFER, BUSHING MOUNT
Operating Temp Range-57.0 TO 71.0 CELSIUS
Overall Diameter1.000 INCHES NOMINAL
Shaft Diameter0.250 INCHES NOMINAL SINGLE ACTUATOR
Terminal TypeCLIP
Throw Quantity3 SINGLE SECTION REAR
Contact Switching ActionBREAKS BEFORE MAKES SINGLE SECTION REAR
Switch Actuator Positioning Increm45.0 DEGREES SINGLE ACTUATOR
Thread Class2A SINGLE MOUNTING FACILITY
Nominal Thread Size0.375 INCHES SINGLE MOUNTING FACILITY
Vendor Part Numbers5-18121-412
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-A-937901 available?
We can source SM-A-937901 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-A-937901 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-A-937901 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-A-937901?
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-A-937901?
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.