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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-C-143770
Relay, Electromagnetic
Part NumberSM-C-143770
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-259-6446 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Pile Up Main Contact Form Arrangem1A
Mounting Facility Type And Quantit4 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Overall Length1.297 INCHES MAXIMUM
Overall Width0.766 INCHES MAXIMUM
Thread Class2B SINGLE MOUNTING FACILITY
Nominal Operating Current Rating A57.5 MILLIAMPERES DC SINGLE WINDING
Thread DirectionRIGHT-HAND SINGLE MOUNTING FACILITY
Winding Quantity1
Arc Quenching MethodAIR
Operating Voltage Rating And Type27.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Overall Height1.031 INCHES MAXIMUM
Cancelled NSN5945-00-521-0208 (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 SM-C-143770 available?
We can source SM-C-143770 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-C-143770 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-C-143770 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-C-143770?
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-C-143770?
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.