National Security Agency · Electronic Components
0N009490
Switch, Rotary
Part Number0N009490
ManufacturerNational Security Agency
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-562-7548 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Style DesignatorCIRCULAR WAFER, BUSHING MOUNT
Overall Diameter0.500 INCHES NOMINAL
Switch Actuator Indexing Position3 SINGLE ACTUATOR
Individual Section Quantity1
Switch Actuator Positioning Increm60.0 DEGREES SINGLE ACTUATOR
Shaft TypeROUND, V FLATTED SINGLE ACTUATOR
Thread Length0.250 INCHES NOMINAL SINGLE MOUNTING FACILITY
Throw Quantity2 SINGLE SECTION REAR
Thread Series DesignatorUNF SINGLE MOUNTING FACILITY
Overall Length1.781 INCHES NOMINAL
Contact Switching ActionBREAKS BEFORE MAKES SINGLE SECTION REAR
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 0N009490 available?
We can source 0N009490 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 0N009490 by National Security Agency obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 0N009490 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 0N009490?
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 0N009490?
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.