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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-B-603985
Switch, Rotary
Part NumberSM-B-603985
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-478-4386 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Contact Load Current Rating20.0 MILLIAMPERES RESISTIVE LOAD LOWEST DC VOLTAGE RATING AT SEA LEVEL
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Individual Section Quantity1
Hazardous Locations EnvironmentalEXPLOSION PROOF
Contact Voltage Rating In Volts115.0 AC AT SEA LEVEL
Nominal Thread Size0.250 INCHES SINGLE MOUNTING FACILITY
Shaft Flat Slot Angular Location0.0 DEGREES FROM NONTURN DEVICE SINGLE ACTUATOR
Overall Length1.607 INCHES MINIMUM AND 1.713 INCHES MAXIMUM
Features ProvidedMETALLIC ENCLOSURE
Switch Actuator Positioning Increm30.0 DEGREES SINGLE ACTUATOR
Mounting MethodTHREADED BUSHING 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 SM-B-603985 available?
We can source SM-B-603985 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-603985 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-603985 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-603985?
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-603985?
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.