Marine Electric Systems Inc. · Electronic Components
SK5509
Relay, Electromagnetic
Part NumberSK5509
ManufacturerMarine Electric Systems Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-401-7232 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Overall Length2.960 INCHES NOMINAL
Winding Dc Resistance Rating639.0 OHMS NOMINAL SINGLE WINDING
Overall Width1.620 INCHES NOMINAL
Operating Voltage Rating And Type30.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Nonpile Up Main Contact Arrangemen2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY AND 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Mounting Facility Type And Quantit1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
Overall Height1.430 INCHES NOMINAL
Coil Quantity1
Winding Quantity1
Environmental ProtectionHERMETIC
Vendor Part NumbersHK-6421
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 SK5509 available?
We can source SK5509 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 SK5509 by Marine Electric Systems Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SK5509 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 SK5509?
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 SK5509?
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.