Northrop Grumman Systems · Electronic Components
581R943H04
Relay, Electromagnetic
Part Number581R943H04
ManufacturerNorthrop Grumman Systems
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-01-089-0657 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Nonpile Up Auxiliary Contact Arran2 POLE, DOUBLE THROW, BOTH POSITIONS MAINTAINED
Environmental ProtectionSHOCK RESISTANT AND VIBRATION RESISTANT
Terminal Type And Quantity11 TAB, SOLDER LUG CONTACTS
Auxiliary Contact Load Current Rat10.0 AMPERES DC RESISTIVE LOAD
Operating Voltage Rating And Type26.5 VOLTS DC 25 DEG CELSIUS ALL WINDINGS
Main Contact Load Current Rating A40.0 AMPERES DC RESISTIVE LOAD
Main Contact Maximum Voltage Ratin120000.0 DC
Overall Height5.000 INCHES NOMINAL
Overall Length8.680 INCHES NOMINAL
Overall Width5.750 INCHES NOMINAL
Auxiliary Contact Maximum Voltage28.0 DC
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 581R943H04 available?
We can source 581R943H04 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 581R943H04 by Northrop Grumman Systems obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 581R943H04 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 581R943H04?
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 581R943H04?
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.