Cooper Wheelock, Inc. · Electronic Components
A9-37
Relay, Electromagnetic
Part NumberA9-37
ManufacturerCooper Wheelock, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-188-6324 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Coil Quantity1
Overall Length3.370 INCHES NOMINAL
Nominal Operating Current Rating A50.0 MILLIAMPERES AC SINGLE WINDING
Center To Center Distance Between2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY
Main Contact Maximum Voltage Ratin110.0 AC
Overall Height2.000 INCHES NOMINAL
Duty TypeCONTINUOUS
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Operating Voltage Rating And Type207.0 VOLTS AC 25 DEG CELSIUS ALL WINDINGS
Unthreaded Mounting Hole Diameter0.156 INCHES NOMINAL SINGLE MOUNTING FACILITY
Mounting Facility Type And Quantit2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
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 A9-37 available?
We can source A9-37 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 A9-37 by Cooper Wheelock, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If A9-37 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 A9-37?
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 A9-37?
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.