Raytheon · Electronic Components
1657051-3
Heat Sink-Insulator
Part Number1657051-3
ManufacturerRaytheon
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-01-395-9724 (NSN)
Federal Item NameHEAT SINK-INSULATOR
Federal Supply Class5999 — Miscellaneous Electrical Components
Overall Width0.006 INCHES NOMINAL0.006 INCHES NOMINAL
Overall Length1.275 INCHES NOMINAL1.275 INCHES NOMINAL
MaterialPLASTIC SILICONE MINERAL FILLED
Unthreaded Mounting Hole Diameter0.100 INCHES NOMINAL FIRST MOUNTING FACILITY
Mounting Facility Type And Quantit4 UNTHREADED HOLE(S) FIRST MOUNTING FACILITY
Body StyleBOARD MOUNTEDBOARD MOUNTED
Overall Height0.750 INCHES NOMINAL0.750 INCHES NOMINAL
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 1657051-3 available?
We can source 1657051-3 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 1657051-3 by Raytheon obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1657051-3 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 1657051-3?
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 1657051-3?
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.