Northrop Grumman Support Services · Electronic Components
138C645H01
Arrester, Lightning
Part Number138C645H01
ManufacturerNorthrop Grumman Support Services
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-01-037-6801 (NSN)
Federal Item NameARRESTER,LIGHTNING
Federal Supply Class5920 — Fuses and Lightning Arresters
Breakdown Voltage6.000 KILOVOLTS MINIMUM AND 7.000 KILOVOLTS MAXIMUM
Overall Diameter2.750 INCHES NOMINAL
Body MaterialCERAMIC
Usage DesignFOR RADIO AND TRANSMITTING ANTENNA SYSTEMS
Mounting Configuration6 EQUALLY SPACED 0.177 IN. DIA MTG HOLES ON 2.380 IN. DIA BOLT CIRCLE
Overall Height3.190 INCHES NOMINAL
Terminal Quantity2
Mounting MethodHOLE
Arrester TypeAIR GAP
Terminal TypeFLANGE AND THREADED STUD
Vendor Part NumbersAR104, 1903-07, 2/34549/4, 4SL/34549/4, 2/34549 ITEM 4, 4SL/34549 ITEM 4
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 138C645H01 available?
We can source 138C645H01 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 138C645H01 by Northrop Grumman Support Services obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 138C645H01 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 138C645H01?
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 138C645H01?
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.