Northrop Grumman Systems Corporation · Electronic Components
581R863H01
Arrester, Electrical Surge
Part Number581R863H01
ManufacturerNorthrop Grumman Systems Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-01-089-2862 (NSN)
Federal Item NameARRESTER,ELECTRICAL SURGE
Federal Supply Class5920 — Fuses and Lightning Arresters
Overall Diameter4.225 INCHES MINIMUM AND 4.275 INCHES MAXIMUM
Overall Length3.350 INCHES MINIMUM AND 3.550 INCHES MAXIMUM
Usage DesignINDOOR
Terminal Quantity2
Breakdown Voltage120.000 KILOVOLTS NOMINAL
Terminal TypeSURFACE CONTACT
Mounting ConfigurationSIX NO. 8 SCREW HOLES EACH END
Mounting MethodSCREW AND HOLE
Body MaterialCERAMIC
Vendor Part NumbersGP-74B-120XE
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 581R863H01 available?
We can source 581R863H01 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 581R863H01 by Northrop Grumman Systems Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 581R863H01 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 581R863H01?
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 581R863H01?
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.