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Joint Army-Navy Specifications Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M · Electronic Components
ST40E
Switch, Toggle
Part NumberST40E
ManufacturerJoint Army-Navy Specifications Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-242-8427 (NSN)
Federal Item NameSWITCH,TOGGLE
Federal Supply Class5930 — Switches
Nonpile Up Contact Arrangement1 POLE, DOUBLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT
Bushing Length0.500 INCHES NOMINAL
Body Width0.641 INCHES NOMINAL
Body StyleBUSHING MOUNT
Body Height0.688 INCHES NOMINAL
Actuator Height0.688 INCHES NOMINAL
Nominal Thread Size0.500 INCHES
Inclosure TypeFULLY INCLOSED
Thread Quantity Per Inch32
Body Length1.141 INCHES NOMINAL
Actuator Position Action RelationsUP POSITION MAINTAINED AND DOWN POSITION MAINTAINED
Cancelled NSN5930-00-636-4638 (cancelled)
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 ST40E available?
We can source ST40E 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 ST40E by Joint Army-Navy Specifications Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If ST40E 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 ST40E?
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 ST40E?
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.