Herley Chicago · Electronic Components
563781-2
Relay, Electromagnetic
Part Number563781-2
ManufacturerHerley Chicago
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-665-9907 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Duty TypeCONTINUOUS
Main Contact Load Current Rating A4.0 AMPERES AC AND 4.0 AMPERES DC RESISTIVE LOAD
Overall Width0.870 INCHES NOMINAL
Nonpile Up Main Contact Arrangemen1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Operating Voltage Rating And Type35.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Overall Height1.250 INCHES NOMINAL
Coil Quantity1
Winding Dc Resistance Rating6.0 KILOHMS NOMINAL SINGLE WINDING
Nominal Operating Current Rating A8.0 MILLIAMPERES DC SINGLE WINDING
Main Contact Maximum Voltage Ratin115.0 AC AND 28.0 DC
Environmental ProtectionHERMETIC
Cancelled NSN5945-00-561-2569 (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 563781-2 available?
We can source 563781-2 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 563781-2 by Herley Chicago obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 563781-2 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 563781-2?
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 563781-2?
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.