Electric Boat Corporation · Electronic Components
03-81-0331
Switch, Rotary
Part Number03-81-0331
ManufacturerElectric Boat Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-296-4310 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Overall Width7.250 INCHES NOMINAL
Hazardous Locations EnvironmentalWATERTIGHT
Switch Actuator Positioning Increm90.0 DEGREES SINGLE ACTUATOR
Mounting Facility Circle Radius3.312 INCHES NOMINAL SINGLE MOUNTING FACILITY
Nondefinitive Spec Std Data3SR3B4-2 TYPE
Overall Height7.250 INCHES NOMINAL
Shaft TypeROUND, FLATTED SINGLE ACTUATOR
Contact Voltage Rating In Volts250.0 DC AT SEA LEVEL
Switch Actuator Momentary PositionCLOCKWISE AND COUNTERCLOCKWISE SINGLE ACTUATOR
Shaft Diameter0.375 INCHES NOMINAL SINGLE ACTUATOR
Mounting Facility PatternTHREE POSITION CIRCULAR SINGLE MOUNTING FACILITY
Vendor Part Numbers3SR3B4-2, S6202-D-74276-B
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 03-81-0331 available?
We can source 03-81-0331 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 03-81-0331 by Electric Boat Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 03-81-0331 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 03-81-0331?
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 03-81-0331?
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.