Leach International · Electronic Components
Z-A1A
Relay, Electromagnetic
Part NumberZ-A1A
ManufacturerLeach International
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-01-028-2654 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Unthreaded Mounting Hole Diameter0.218 INCHES NOMINAL SINGLE MOUNTING FACILITY
Nonpile Up Main Contact Arrangemen3 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Overall Diameter3.650 INCHES MAXIMUM
Mounting Facility PatternRECTANGULAR SINGLE MOUNTING FACILITY
Coil Quantity1
Features ProvidedPOLARIZED
Winding Dc Resistance Rating113.0 OHMS NOMINAL SINGLE WINDING
Terminal Type And Quantity11 THREADED STUD ALL FUNCTIONS
Mounting Facility Type And Quantit4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Environmental ProtectionHERMETIC
Operating Voltage Rating And Type28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Vendor Part Numbers5L.4759.002.25
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 Z-A1A available?
We can source Z-A1A 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 Z-A1A by Leach International obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If Z-A1A 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 Z-A1A?
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 Z-A1A?
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.