Telephone Company of America · Electronic Components
A40180
Relay, Electromagnetic
Part NumberA40180
ManufacturerTelephone Company of America
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-251-7376 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Center To Center Distance Between0.562 INCHES NOMINAL SINGLE MOUNTING FACILITY
Thread Class2B SINGLE MOUNTING FACILITY
Coil Quantity1
Winding Dc Resistance Rating230.0 OHMS NOMINAL THIRD WINDING
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Overall Length4.310 INCHES NOMINAL
Nominal Thread Size0.164 INCHES SINGLE MOUNTING FACILITY
Winding Quantity3
Pile Up Main Contact Form Arrangem1C
Overall Height1.680 INCHES NOMINAL
Terminal Type And Quantity8 PIN ALL FUNCTIONS
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 A40180 available?
We can source A40180 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 A40180 by Telephone Company of America obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If A40180 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 A40180?
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 A40180?
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.