Raytheon · Electronic Components
U28-5556
Switch, Rotary
Part NumberU28-5556
ManufacturerRaytheon
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-548-4630 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Contact Voltage Rating In Volts110.0 AC AT SEA LEVEL
Overall Length4.625 INCHES NOMINAL
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Flat Height0.187 INCHES NOMINAL SINGLE ACTUATOR
Overall Width1.625 INCHES NOMINAL
First Flat Length0.375 INCHES NOMINAL SINGLE ACTUATOR
Overall Height1.938 INCHES NOMINAL
Terminal TypeTAB, SOLDER LUG
Contact Switching ActionMAKES BEFORE BREAKS FIRST SECTION REAR
Thread Class2A SINGLE MOUNTING FACILITY
Pole Quantity1 SECOND SECTION FRONT
Vendor Part Numbers155018
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 U28-5556 available?
We can source U28-5556 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 U28-5556 by Raytheon obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If U28-5556 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 U28-5556?
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 U28-5556?
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.