Rockwell Collins · Electronic Components
259-2840-040
Switch, Rotary
Part Number259-2840-040
ManufacturerRockwell Collins
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-173-3500 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Style DesignatorCIRCULAR WAFER, BUSHING MOUNT
Terminal TypeTAB, SOLDER LUG
Thread Series DesignatorUNEF SINGLE MOUNTING FACILITY
Overall Length2.375 INCHES NOMINAL
Contact Load Current Rating50.0 MILLIAMPERES RESISTIVE LOAD AC AT SEA LEVEL
Contact Voltage Rating In Volts28.0 DC AT SEA LEVEL
Shaft Diameter0.247 INCHES MINIMUM AND 0.251 INCHES MAXIMUM SINGLE ACTUATOR
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL AND NONPILE-UP NONSYMMETRICAL
Contact Switching ActionBREAKS BEFORE MAKES SECOND SECTION REAR
Switch Actuator Stop Device TypeFIXED STOP SINGLE ACTUATOR
Mounting MethodTHREADED BUSHING SINGLE MOUNTING FACILITY
Vendor Part Numbers5-28313-211, 39351-414LR3
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 259-2840-040 available?
We can source 259-2840-040 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 259-2840-040 by Rockwell Collins obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 259-2840-040 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 259-2840-040?
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 259-2840-040?
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.