Smiths Aerospace, Inc., Electronic Systems-Grand Rapids · Electronic Components
22644
Heat Sink, Electrical
Part Number22644
ManufacturerSmiths Aerospace, Inc., Electronic Systems-Grand Rapids
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-01-241-7322 (NSN)
Federal Item NameHEAT SINK,ELECTRICAL-ELECTRONIC
Federal Supply Class5999 — Miscellaneous Electrical Components
Overall Width0.920 INCHES NOMINAL
Surface TreatmentCHROMATE
Overall Height0.620 INCHES NOMINAL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Overall Length3.690 INCHES NOMINAL
Surface Treatment Document And ClaMIL-C-5541,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE
Nominal Thread Size0.112 INCHES SINGLE MOUNTING FACILITY
Thread Class2B SINGLE MOUNTING FACILITY
Mounting Facility Type And Quantit6 THREADED HOLE(S) SINGLE MOUNTING FACILITY
MaterialALUMINUM
ESD/EMICode A — 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 22644 available?
We can source 22644 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 22644 by Smiths Aerospace, Inc., Electronic Systems-Grand Rapids obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 22644 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 22644?
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 22644?
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.