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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-B-157789
Relay, Electromagnetic
Part NumberSM-B-157789
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-259-1198 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Environmental ProtectionHERMETIC
Nominal Operating Current Rating A5.0 MILLIAMPERES DC SINGLE WINDING
Nonpile Up Main Contact Arrangemen1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Duty TypeCONTINUOUS
Operating Voltage Rating And Type60.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Terminal Type And Quantity5 PIN ALL FUNCTIONS
Winding Quantity1
Overall Length1.810 INCHES NOMINAL
Mounting Facility Type And Quantit1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
Overall Diameter0.750 INCHES NOMINAL
Coil Quantity1
Vendor Part NumbersA6585
Cancelled NSN5945-00-273-6897 (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-B-157789 available?
We can source SM-B-157789 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-B-157789 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-B-157789 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-B-157789?
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-B-157789?
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.