Western Union Telegraph Co Sub Of Western Union Corp. · Electronic Components
202741
Relay, Electromagnetic
Part Number202741
ManufacturerWestern Union Telegraph Co Sub Of Western Union Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-198-9917 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Coil Quantity1
Winding Dc Resistance Rating1.3 KILOHMS NOMINAL SECOND WINDING
Main Contact Load Current Rating A3.0 AMPERES AC RESISTIVE LOAD
Pile Up Main Contact Form Arrangem1B1C1D AND 1C1D
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Center To Center Distance Between0.750 INCHES NOMINAL SINGLE MOUNTING FACILITY
Terminal Type And Quantity18 PIN ALL FUNCTIONS
Nominal Operating Current Rating A140.0 MILLIAMPERES DC ALL WINDINGS
Duty TypeCONTINUOUS
Overall Height1.250 INCHES NOMINAL
Cancelled NSN5945-00-204-6666 (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 202741 available?
We can source 202741 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 202741 by Western Union Telegraph Co Sub Of Western Union Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 202741 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 202741?
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 202741?
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.