Northrop Grumman Corp. Electronic Systems Defensive System Div · Electronic Components
318680
Heat Sink, Electrical
Part Number318680
ManufacturerNorthrop Grumman Corp. Electronic Systems Defensive System Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-01-056-8601 (NSN)
Federal Item NameHEAT SINK,ELECTRICAL-ELECTRONIC
Federal Supply Class5999 — Miscellaneous Electrical Components
Overall Height0.620 INCHES NOMINAL
MaterialALUMINUM ALLOY 6061
Overall Length5.880 INCHES NOMINAL
Overall Width4.000 INCHES NOMINAL
Material Document And ClassificatiQQ-A-250/11 TEMP T-451 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250.11 TEMP T0651 FED SPEC SINGLE MATERIAL RESPONSE
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 318680 available?
We can source 318680 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 318680 by Northrop Grumman Corp. Electronic Systems Defensive System Div obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 318680 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 318680?
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 318680?
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.