Northrop Grumman Systems Corporation · Electronic Components
581R904H01
Dummy Load, Electrical
Part Number581R904H01
ManufacturerNorthrop Grumman Systems Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-086-1202 (NSN)
Federal Item NameDUMMY LOAD,ELECTRICAL
Federal Supply Class5985 — Antennas and Waveguides
Operating PositionALL POSITIONS
Power Rating5.000 WATTS AVERAGE AND 5.000 KILOWATTS PEAK
Frequency Range Rating+0.000 TO 10.000 GIGAHERTZ
Overall Length1.550 INCHES NOMINAL
Style DesignatorCOAXIAL MOUNTED
Ambient Temp At Full Rated Power-55.0 CELSIUS AND 125.0 CELSIUS
Overall Diameter0.750 INCHES NOMINAL
Cooling MethodSELF-COOLED
Impedance Rating In Ohms50.0 NOMINAL
Voltage Standing Wave Ratio Freque+0.000 TO 4.000 GIGAHERTZ AND +4.000 TO 8.000 GIGAHERTZ AND +8.000 TO 10.000 GIGAHERTZ
Connector End DesignMALE
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 581R904H01 available?
We can source 581R904H01 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 581R904H01 by Northrop Grumman Systems Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 581R904H01 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 581R904H01?
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 581R904H01?
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.