Electroswitch · Electronic Components
31904LA
Switch, Rotary
Part Number31904LA
ManufacturerElectroswitch
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-058-9592 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Thread Series DesignatorUNS SINGLE MOUNTING FACILITY
Overall Diameter2.000 INCHES NOMINAL
Shaft Flat Slot Angular Location180.0 DEGREES FROM CONTACT POSITION 1 SINGLE ACTUATOR
Shaft Diameter0.250 INCHES NOMINAL SINGLE ACTUATOR
Terminal TypeTAB W/SCREW
Contact Voltage Rating In Volts500.0 AC AT SEA LEVEL
Overall Length3.610 INCHES NOMINAL
Hazardous Locations EnvironmentalDUSTPROOF
Pole Quantity1 EACH SECTION REAR
Knob Manufacturer Code82121
Contact Load Current Rating3.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
Vendor Part Numbers13205E4786
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 31904LA available?
We can source 31904LA 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 31904LA by Electroswitch obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 31904LA 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 31904LA?
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 31904LA?
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.