Kearsley Airways · Electronic Components
F45-55
Relay, Electromagnetic
Part NumberF45-55
ManufacturerKearsley Airways
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-484-1233 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Coil Quantity1
Main Contact Maximum Voltage Ratin10.0 DC
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Overall Width2.000 INCHES NOMINAL
Overall Height1.870 INCHES NOMINAL
Thread Class2A SINGLE MOUNTING FACILITY
Winding Dc Resistance Rating120.0 OHMS NOMINAL ALL WINDINGS
Nonpile Up Main Contact Arrangemen1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Winding Quantity2
Environmental ProtectionDUSTPROOF
Overall Length1.370 INCHES NOMINAL
Cancelled NSN6105-00-434-1972 (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 F45-55 available?
We can source F45-55 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 F45-55 by Kearsley Airways obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If F45-55 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 F45-55?
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 F45-55?
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.