US Dept of Transportation Federal Aviation Administration · Electronic Components
P40F42A12D1
Relay, Electromagnetic
Part NumberP40F42A12D1
ManufacturerUS Dept of Transportation Federal Aviation Administration
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-01-294-5680 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Overall Length3.750 INCHES NOMINAL
Main Contact Load Current Rating A40.0 AMPERES AC RESISTIVE LOAD
Operating Voltage Rating And Type120.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
Overall Width2.500 INCHES NOMINAL
Duty TypeCONTINUOUS
Center To Center Distance Between1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY
Coil Quantity1
Frequency In Hertz50.0 MINIMUM AND 60.0 MAXIMUM
Main Contact Maximum Voltage Ratin600.0 AC
Auxiliary Contact Maximum Voltage250.0 AC
Terminal Type And Quantity2 SCREW 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 P40F42A12D1 available?
We can source P40F42A12D1 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 P40F42A12D1 by US Dept of Transportation Federal Aviation Administration obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If P40F42A12D1 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 P40F42A12D1?
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 P40F42A12D1?
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.