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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir  · Electronic Components

SM-A-803689-1

Switch, Flow

Part NumberSM-A-803689-1
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameSWITCH,FLOW
Federal Supply Class5930 — Switches
Terminal TypeTAB, SOLDER LUG
Overall Length3.356 INCHES MINIMUM AND 3.464 INCHES MAXIMUM
Overall Diameter0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
Style DesignatorCYLINDRICAL
Operating Temp Rating-50.0 FAHRENHEIT MINIMUM AND 160.0 FAHRENHEIT MAXIMUM
Nonpile Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Contact Load Current Rating400.0 MILLIAMPERES RESISTIVE LOAD SINGLE VOLTAGE
Contact AdjustabilityACTUATION POINT NOT ADJUSTABLE AND DEACTUATION POINT NOT ADJUSTABLE
Contact Voltage Rating In Volts28.0 DC AT SEA LEVEL SINGLE VOLTAGE
Media For Which DesignedGAS
Mounting MethodBRACKET(S) AND UNTHREADED HOLE(S)
Vendor Part Numbers2SE73-203C28G..930
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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

Frequently asked

Is SM-A-803689-1 available?
We can source SM-A-803689-1 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 SM-A-803689-1 by US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SM-A-803689-1 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 SM-A-803689-1?
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 SM-A-803689-1?
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.