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Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SMB527550
Switch, Rotary
Part NumberSMB527550
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-947-8859 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Pole Quantity1 SINGLE SECTION REAR
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Flat Height0.218 INCHES NOMINAL SINGLE ACTUATOR
Individual Section Quantity1
Shaft Length0.688 INCHES NOMINAL SINGLE ACTUATOR
Mounting MethodTHREADED BUSHING SINGLE MOUNTING FACILITY
Contact Voltage Rating In Volts115.0 AC AT SEA LEVEL
Nominal Thread Size0.375 INCHES SINGLE MOUNTING FACILITY
Switch Actuator Indexing Position4 SINGLE ACTUATOR
Operating Temp Range-65.0 TO 85.0 CELSIUS
Contact Switching ActionMAKES BEFORE BREAKS SINGLE SECTION REAR
Vendor Part Numbers255354A1, 31631-1212SM1
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 SMB527550 available?
We can source SMB527550 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 SMB527550 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 SMB527550 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 SMB527550?
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 SMB527550?
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.