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Navair And Navsea Managed Original Design Activity Dwg Not Material/Parts Supplier · Electronic Components
2556931
Heat Sink, Electrical
Part Number2556931
ManufacturerNavair And Navsea Managed Original Design Activity Dwg Not Material/Parts Supplier
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-00-871-9538 (NSN)
Federal Item NameHEAT SINK,ELECTRICAL-ELECTRONIC
Federal Supply Class5999 — Miscellaneous Electrical Components
Material Document And ClassificatiMIL-C-81021 MIL SPEC SINGLE MATERIAL RESPONSE
Surface Treatment Document And ClaMIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE
Criticality Code JustificationFEAT
Unthreaded Mounting Hole Diameter0.240 INCHES MINIMUM AND 0.265 INCHES MAXIMUM SINGLE MOUNTING FACILITY
Mounting Facility Type And Quantit1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
MaterialCOPPER ALLOY
Surface TreatmentOXIDE
Overall Height0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM
Cancelled NSN5895-00-758-1799 (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 2556931 available?
We can source 2556931 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 2556931 by Navair And Navsea Managed Original Design Activity Dwg Not Material/Parts Supplier obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 2556931 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 2556931?
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 2556931?
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.