Naval Sea Systems Command · Electronic Components
5855777
Heat Sink, Electrical
Part Number5855777
ManufacturerNaval Sea Systems Command
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-01-424-2943 (NSN)
Federal Item NameHEAT SINK,ELECTRICAL-ELECTRONIC
Federal Supply Class5999 — Miscellaneous Electrical Components
Surface Treatment Document And ClaMIL-A-8625,T3,1 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-C-5541,C3 MIL SPEC 2ND TREATMENT RESPONSE
Material Document And ClassificatiQQ-A-250/11, TYPE6 FED SPEC SINGLE MATERIAL RESPONSE
Surface TreatmentANODIZE AND CHROMATE
Overall Length5.790 INCHES MINIMUM AND 6.810 INCHES MAXIMUM
MaterialALUMINUM ALLOY 6061
Overall Height0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM
Overall Width5.490 INCHES MINIMUM AND 5.510 INCHES MAXIMUM
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 5855777 available?
We can source 5855777 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 5855777 by Naval Sea Systems Command obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 5855777 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 5855777?
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 5855777?
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.