Raytheon Company · Electronic Components
3578718
Heat Sink, Electrical
Part Number3578718
ManufacturerRaytheon Company
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-01-278-4908 (NSN)
Federal Item NameHEAT SINK,ELECTRICAL-ELECTRONIC
Federal Supply Class5999 — Miscellaneous Electrical Components
Overall Length5.550 INCHES NOMINAL
Material Document And ClassificatiQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE
Overall Width4.950 INCHES NOMINAL
Overall Height0.032 INCHES NOMINAL
Surface TreatmentCHROMATE
Surface Treatment Document And ClaMIL-A-5541,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE
MaterialALUMINUM ALLOY 6061
ESD/EMICode B — ESD/EMI sensitive item
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 3578718 available?
We can source 3578718 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 3578718 by Raytheon Company obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3578718 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 3578718?
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 3578718?
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.