Raytheon Company · Electronic Components
479643
Heat Sink, Electrical
Part Number479643
ManufacturerRaytheon Company
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-01-237-5377 (NSN)
Federal Item NameHEAT SINK,ELECTRICAL-ELECTRONIC
Federal Supply Class5999 — Miscellaneous Electrical Components
Overall Diameter1.125 INCHES NOMINAL
Surface TreatmentANODIZE
Overall Height0.375 INCHES NOMINAL
Mounting Facility Type And Quantit3 UNTHREADED HOLE(S) ALL MOUNTING FACILITIES
Material Document And ClassificatiQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE
Surface Treatment Document And ClaMIL-A-8625,TYPE 3,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE
Unthreaded Mounting Hole Diameter0.067 INCHES NOMINAL ALL MOUNTING FACILITIES
MaterialALUMINUM ALLOY
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 479643 available?
We can source 479643 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 479643 by Raytheon Company obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 479643 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 479643?
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 479643?
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.