Electro Switch Corp. · Electronic Components
1103A
Heat Sink, Electrical
Part Number1103A
ManufacturerElectro Switch Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-00-141-3756 (NSN)
Federal Item NameHEAT SINK,ELECTRICAL-ELECTRONIC
Federal Supply Class5999 — Miscellaneous Electrical Components
Overall Length0.500 INCHES NOMINAL
Surface TreatmentANODIZE
Material Document And ClassificatiQQ-A-325,T5 OR A FED SPEC SINGLE MATERIAL RESPONSE
Thread Class2B SINGLE MOUNTING FACILITY
MaterialALUMINUM ALLOY 6061
Surface Treatment Document And ClaMIL-STD-130 MIL STD SINGLE TREATMENT RESPONSE
Mounting Facility Type And Quantit1 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Overall Width0.390 INCHES NOMINAL
Nominal Thread Size0.112 INCHES SINGLE MOUNTING FACILITY
Cancelled NSN5999-01-128-4493 (cancelled)
ESD/EMICode B — 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 1103A available?
We can source 1103A 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 1103A by Electro Switch Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1103A 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 1103A?
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 1103A?
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.