Northrop Grumman Systems · Electronic Components
1979919 PIECE 52
Heat Sink, Electrical
Part Number1979919 PIECE 52
ManufacturerNorthrop Grumman Systems
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-01-397-2051 (NSN)
Federal Item NameHEAT SINK,ELECTRICAL-ELECTRONIC
Federal Supply Class5999 — Miscellaneous Electrical Components
Overall Height0.063 INCHES NOMINAL
Mounting Facility Type And Quantit2 UNTHREADED HOLE(S) FOURTH MOUNTING FACILITY
Unthreaded Mounting Hole Diameter0.290 INCHES NOMINAL THIRD MOUNTING FACILITY
Material Document And ClassificatiQQ-A-250/8, 5052-H32 FED SPEC SINGLE MATERIAL RESPONSE
MaterialALUMINUM ALLOY
Surface TreatmentCHROMATE
Surface Treatment Document And ClaMIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE
Overall Length4.130 INCHES NOMINAL
Overall Width4.080 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 1979919 PIECE 52 available?
We can source 1979919 PIECE 52 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 1979919 PIECE 52 by Northrop Grumman Systems obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1979919 PIECE 52 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 1979919 PIECE 52?
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 1979919 PIECE 52?
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.