MIL-SPEC · Electronic Components
MS27743-28
Relay, Electromagnetic
Part NumberMS27743-28
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-01-491-7786 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Winding Quantity1
Overall Width1.010 INCHES MAXIMUM
Main Contact Maximum Voltage Ratin115.0 AC AND 28.0 DC
Purpose For Which DesignedGENERAL
Duty TypeCONTINUOUS
Mounting Facility PatternCIRUCLAR SINGLE MOUNTING FACILITY
Mounting Facility Type And Quantit3 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Unthreaded Mounting Hole Diameter0.150 INCHES NOMINAL SINGLE MOUNTING FACILITY
Center To Center Distance Between1.446 INCHES NOMINAL SINGLE MOUNTING FACILITY
Main Contact Load Current Rating A25.0 AMPERES AC AND 25.0 AMPERES DC RESISTIVE LOAD
Environmental ProtectionHERMETIC
ESD/EMICode A — ESD/EMI sensitive item
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 MS27743-28 available?
We can source MS27743-28 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 MS27743-28 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS27743-28 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 MS27743-28?
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 MS27743-28?
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.