MIL-SPEC · Electronic Components
3SR4D43
Switch, Rotary
Part Number3SR4D43
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-258-4209 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Switch Actuator Positioning Increm90.0 DEGREES SINGLE ACTUATOR
Terminal TypeTAB W/SCREW
Shaft Diameter0.375 INCHES NOMINAL SINGLE ACTUATOR
Knob Manufacturer Part NumberS6202-74089-192
Longest Vertical Distance Between7.875 INCHES NOMINAL SINGLE MOUNTING FACILITY
Shaft TypeROUND SINGLE ACTUATOR
Overall Height6.312 INCHES NOMINAL
Hazardous Locations EnvironmentalWATERTIGHT
Longest Horizontal Distance Betwee7.250 INCHES NOMINAL SINGLE MOUNTING FACILITY
Shaft Length1.125 INCHES NOMINAL SINGLE ACTUATOR
Unthreaded Mounting Hole Diameter0.375 INCHES NOMINAL 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 3SR4D43 available?
We can source 3SR4D43 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 3SR4D43 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3SR4D43 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 3SR4D43?
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 3SR4D43?
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.