American Zettler · Electronic Components
421-C56-10L
Relay, Electromagnetic
Part Number421-C56-10L
ManufacturerAmerican Zettler
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-01-170-3467 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Overall Length1.165 INCHES MAXIMUM
Coil Quantity1
Thread Class2A SINGLE MOUNTING FACILITY
Winding Dc Resistance Rating2.5 KILOHMS NOMINAL SINGLE WINDING
Winding Quantity1
Overall Width1.107 INCHES MAXIMUM
Duty TypeINTERMITTENT
Nominal Operating Current Rating A9.4 MILLIAMPERES DC SINGLE WINDING
Pile Up Main Contact Form Arrangem4C
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Terminal Type And Quantity4 TAB, SOLDER LUG ALL FUNCTIONS
Vendor Part NumbersTS 163-4C-8.4MADC, 942000-106
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 421-C56-10L available?
We can source 421-C56-10L 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 421-C56-10L by American Zettler obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 421-C56-10L 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 421-C56-10L?
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 421-C56-10L?
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.