Us Army Aviation And Missile Command · Electronic Components
11437640-3
Heat Sink, Electrical
Part Number11437640-3
ManufacturerUs Army Aviation And Missile Command
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-01-218-2720 (NSN)
Federal Item NameHEAT SINK,ELECTRICAL-ELECTRONIC
Federal Supply Class5999 — Miscellaneous Electrical Components
Overall Width1.250 INCHES NOMINAL
Overall Length1.531 INCHES NOMINAL
MaterialALUMINUM ALLOY
Mounting Facility Type And Quantit2 UNTHREADED HOLE(S) FIRST MOUNTING FACILITY
Unthreaded Mounting Hole Diameter0.207 INCHES MINIMUM AND 0.229 INCHES MAXIMUM SECOND MOUNTING FACILITY
Surface Treatment Document And ClaMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE
Material Document And ClassificatiQQ-A-250 FED SPEC SINGLE MATERIAL RESPONSE
Surface TreatmentCHROMATE
Overall Height0.515 INCHES NOMINAL
Vendor Part Numbers5205C
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 11437640-3 available?
We can source 11437640-3 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 11437640-3 by Us Army Aviation And Missile Command obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 11437640-3 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 11437640-3?
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 11437640-3?
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.