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Naval Air Systems Command Managed Original Design Activity Not Material/Parts Supplier · Electronic Components
1425AS257
Heat Sink, Electrical
Part Number1425AS257
ManufacturerNaval Air Systems Command Managed Original Design Activity Not Material/Parts Supplier
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-01-383-0280 (NSN)
Federal Item NameHEAT SINK,ELECTRICAL-ELECTRONIC
Federal Supply Class5999 — Miscellaneous Electrical Components
Body StyleEXTRUDED
Surface TreatmentANODIZE
Mounting Slot Length0.500 INCHES NOMINAL SINGLE MOUNTING FACILITY
Surface Treatment Document And ClaMIL-A-8625, TYPE II, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE
Mounting Facility Type And Quantit2 SLOT SINGLE MOUNTING FACILITY
MaterialALUMINUM ALLOY
Overall Height0.750 INCHES NOMINAL
Overall Length8.000 INCHES NOMINAL
Overall Width5.250 INCHES NOMINAL
Material Document And ClassificatiQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/8, T6, T6510, OR T6511 FED SPEC SINGLE MATERIAL RESPONSE
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 1425AS257 available?
We can source 1425AS257 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 1425AS257 by Naval Air Systems Command Managed Original Design Activity Not Material/Parts Supplier obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1425AS257 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 1425AS257?
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 1425AS257?
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.