US Army Aviation and Missile Command · Electronic Components
11477988-4
Heat Sink-Insulator
Part Number11477988-4
ManufacturerUS Army Aviation and Missile Command
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-01-470-2962 (NSN)
Federal Item NameHEAT SINK-INSULATOR
Federal Supply Class5999 — Miscellaneous Electrical Components
Unthreaded Mounting Hole Diameter0.223 INCHES NOMINAL ALL MOUNTING FACILITIES
Overall Height0.020 INCHES NOMINAL0.020 INCHES NOMINAL
Mounting Facility Type And Quantit2 UNTHREADED HOLE(S) ALL MOUNTING FACILITIES
Overall Length1.190 INCHES NOMINAL1.190 INCHES NOMINAL
MaterialRUBBER SILICONE CLASS Q
Overall Width2.000 INCHES NOMINAL2.000 INCHES NOMINAL
Body StyleRECTANGULARRECTANGULAR
Vendor Part NumbersBG400838
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 11477988-4 available?
We can source 11477988-4 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 11477988-4 by US Army Aviation and Missile Command obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 11477988-4 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 11477988-4?
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 11477988-4?
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.