Portsmouth Naval Shipyard · Electronic Components
MS11603
Switch, Rotary
Part NumberMS11603
ManufacturerPortsmouth Naval Shipyard
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-548-6644 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Longest Vertical Distance Between2.188 INCHES NOMINAL SINGLE MOUNTING FACILITY
Contact Switching ActionBREAKS BEFORE MAKES EACH SECTION FRONT
Overall Height5.000 INCHES NOMINAL
Contact Voltage Rating In Volts600.0 DC AT SEA LEVEL
Hazardous Locations EnvironmentalDUSTPROOF
Switch Actuator Positioning Increm90.0 DEGREES SINGLE ACTUATOR
Switch Actuator Indexing Position3 SINGLE ACTUATOR
Contact Load Current Rating20.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL
Features ProvidedMETALLIC ENCLOSURE
Shaft Length4.000 INCHES NOMINAL SINGLE ACTUATOR
Longest Horizontal Distance Betwee2.000 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 MS11603 available?
We can source MS11603 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 MS11603 by Portsmouth Naval Shipyard obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS11603 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 MS11603?
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 MS11603?
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.