MIL-SPEC · Electronic Components
NAS4117C57
Heat Sink-Insulator
Part NumberNAS4117C57
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-01-461-7893 (NSN)
Federal Item NameHEAT SINK-INSULATOR
Federal Supply Class5999 — Miscellaneous Electrical Components
Overall Length1.780 INCHES NOMINAL1.780 INCHES NOMINAL
Overall Width1.250 INCHES NOMINAL1.250 INCHES NOMINAL
Mounting Facility Type And Quantit2 UNTHREADED HOLE(S) FIRST MOUNTING FACILITY
Unthreaded Mounting Hole Diameter0.093 INCHES NOMINAL SECOND MOUNTING FACILITY
Body StyleRECTANGULARRECTANGULAR
Overall Height0.020 INCHES NOMINAL0.020 INCHES NOMINAL
MaterialBERYLLIUM OXIDE
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 NAS4117C57 available?
We can source NAS4117C57 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 NAS4117C57 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If NAS4117C57 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 NAS4117C57?
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 NAS4117C57?
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.