Naval Sea Systems Command · Electronic Components
5543656
Heat Sink, Electrical
Part Number5543656
ManufacturerNaval Sea Systems Command
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-01-321-7452 (NSN)
Federal Item NameHEAT SINK,ELECTRICAL-ELECTRONIC
Federal Supply Class5999 — Miscellaneous Electrical Components
Overall Length1.100 INCHES NOMINAL
Surface Treatment Document And ClaMIL-T-10727; TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE
Nominal Thread Size0.190 INCHES FIRST MOUNTING FACILITY
Mounting Facility Type And Quantit2 THREADED HOLE(S) SECOND MOUNTING FACILITY
Overall Height0.700 INCHES NOMINAL
Material Document And ClassificatiQQ-C-576,1/8 TO 1/4 HARD FED SPEC SINGLE MATERIAL RESPONSE
Surface TreatmentTIN
Overall Width0.900 INCHES NOMINAL
MaterialCOPPER ALLOY 102
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 5543656 available?
We can source 5543656 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 5543656 by Naval Sea Systems Command obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 5543656 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 5543656?
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 5543656?
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.