MIL-SPEC · Electronic Components
J520U
Interconnecting Box
Part NumberJ520U
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-00-519-3811 (NSN)
Federal Item NameINTERCONNECTING BOX
Federal Supply Class6625 — Test Instruments
Furnished Items And Quantity5 CIRCUIT BREAKER AND 2 CONNECTOR LOCATION NOT OTHERWISE SPECIFIED
Overall Height2.500 INCHES NOMINAL
FSC Application DataTEST SET,ELECTRICAL,RADIO
Overall Width5.000 INCHES NOMINAL
MaterialALUMINUM
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 J520U available?
We can source J520U 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 J520U by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If J520U 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 J520U?
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 J520U?
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.