Leonardo Spa Helicopters Division - Production Site · Electronic Components
MS27751-21
Relay, Electromagnetic
Part NumberMS27751-21
ManufacturerLeonardo Spa Helicopters Division - Production Site
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-01-334-7956 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Center To Center Distance Between2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY
Overall Diameter2.500 INCHES MAXIMUM
Time Delay0.025 SECONDS MAXIMUM FIXED RELEASE TIME
Duty TypeCONTINUOUS
Main Contact Maximum Voltage Ratin115.0 AC AND 28.0 DC
Main Contact Load Current Rating A40.0 AMPERES AC AND 20.0 AMPERES DC MOTOR LOAD
Overall Height3.130 INCHES MAXIMUM
Operating Voltage Rating And Type28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Features ProvidedPOLARIZED
Coil Quantity1
Winding Quantity1
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 MS27751-21 available?
We can source MS27751-21 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 MS27751-21 by Leonardo Spa Helicopters Division - Production Site obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS27751-21 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 MS27751-21?
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 MS27751-21?
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.