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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-B-172166
Switch, Rotary
Part NumberSM-B-172166
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-329-8094 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Contact Load Current Rating500.0 MILLIAMPERES RESISTIVE LOAD AND 3.5 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
Switch Actuator Stop Device TypeFIXED STOP SINGLE ACTUATOR
Detent Rotational Torque Range+15.000 TO 25.000 INCH-OUNCES SINGLE ACTUATOR
Overall Length1.500 INCHES NOMINAL
Thread Series DesignatorUNEF SINGLE MOUNTING FACILITY
Thread Length0.313 INCHES NOMINAL SINGLE MOUNTING FACILITY
Shaft Length0.672 INCHES MINIMUM AND 0.704 INCHES MAXIMUM SINGLE ACTUATOR
Pole Quantity2 SINGLE SECTION FRONT
Contact Voltage Rating In Volts6.0 LOWEST AC VOLTAGE RATING AT SEA LEVEL
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Style DesignatorCIRCULAR WAFER, BUSHING MOUNT
Vendor Part NumbersGH-1629-2-H, 28961-4MLR-1
Cancelled NSN5930-00-356-2383 (cancelled)
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-172166 available?
We can source SM-B-172166 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-172166 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-172166 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-172166?
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-172166?
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.