Lockheed Martin · Electronic Components
740631-103
Switch, Rotary
Part Number740631-103
ManufacturerLockheed Martin
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-230-8436 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Switch Actuator Stop Device TypeFIXED STOP SINGLE ACTUATOR
Overall Diameter2.000 INCHES MAXIMUM
Switch Actuator Positioning Increm15.0 DEGREES SINGLE ACTUATOR
Contact Load Current Rating2.0 AMPERES RESISTIVE LOAD AND 500.0 MILLIAMPERES INDUCTIVE LOAD AC AT SEA LEVEL
Test Data Document81349-MIL-S-3786 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DAT
Contact Switching ActionBREAKS BEFORE MAKES EACH SECTION REAR
Style DesignatorTAP, CIRCULAR, BUSHING MOUNT
Thread Series DesignatorUNS SINGLE MOUNTING FACILITY
Shaft Diameter0.248 INCHES MINIMUM AND 0.251 INCHES MAXIMUM SINGLE ACTUATOR
Nonturn Device TypeSLOTTED BUSHING AT 6:00 OCLOCK
First Flat Length0.375 INCHES NOMINAL SINGLE ACTUATOR
Vendor Part Numbers56-1922-1
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 740631-103 available?
We can source 740631-103 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 740631-103 by Lockheed Martin obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 740631-103 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 740631-103?
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 740631-103?
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.