NSN 5999-01-396-6912 · NIIN 013966912 · Part number 516558-2
Raytheon Company · FSC 5999 — Miscellaneous Electrical and Electronic Components · FSG 59 — Electrical and Electronic Equipment Components · CAGE 37695
Government record, cited
NSN 5999-01-396-6912 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-396-6912. Manufacturer of record part number: 516558-2.
Also searched as5999-01-396-6912 ·
5999013966912 ·
NIIN 013966912 ·
01-396-6912 ·
FSC 5999 Miscellaneous Electrical and Electronic Components · CAGE 37695 · 516558-2
Mounting Facility Type and Quantity: 5 UNTHREADED HOLE(S) ALL MOUNTING FACILITIES
Body Style: RECTANGULAR
Unthreaded Mounting Hole Diameter: 0.099 INCHES NOMINAL ALL MOUNTING FACILITIES IN
Material: ALUMINUM ALLOY 6061
1 manufacturer part number on file
Manufacturer of record: Raytheon Company
Identification
NSN: 5999-01-396-6912
NIIN: 013966912
FSC: 5999 — Miscellaneous Electrical and Electronic Components
FSG: 59 — Electrical and Electronic Equipment Components
Primary part number: 516558-2
Manufacturer: Raytheon Company
General Description
The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-396-6912, is classified within Federal Supply Class 5999 (Miscellaneous Electrical and Electronic Components) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Raytheon Company. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
Technical Specifications
Parameter
Value
NSN
5999-01-396-6912
Primary Part Number
516558-2
Item Name
Heat Sink,electrical-Electronic
FSC / FSG
5999 / 59 — Miscellaneous Electrical and Electronic Components
Manufacturer
Raytheon Company
Status
ACTIVE
Mounting Facility Type and Quantity
5 UNTHREADED HOLE(S) ALL MOUNTING FACILITIES
Body Style
RECTANGULAR
Unthreaded Mounting Hole Diameter
0.099 INCHES NOMINAL ALL MOUNTING FACILITIES IN
Material
ALUMINUM ALLOY 6061
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 5999 — Miscellaneous Electrical and Electronic Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5999-00-001-1345
5999-00-001-1345 · Item name not on file
5999-00-001-1346
5999-00-001-1346 · Item name not on file
5999-00-001-1348
5999-00-001-1348 · Item name not on file
5999-00-001-1349
5999-00-001-1349 · Item name not on file
5999-00-001-1355
5999-00-001-1355 · Item name not on file
5999-00-001-1623
5999-00-001-1623 · Item name not on file
5999-00-001-2537
5999-00-001-2537 · Item name not on file
5999-00-001-2539
5999-00-001-2539 · Item name not on file
Frequently Asked Questions
What is NSN 5999-01-396-6912?
NSN 5999-01-396-6912 is a Heat Sink,electrical-Electronic, manufactured by Raytheon Company, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
What part numbers are listed for NSN 5999-01-396-6912?
NSN 5999-01-396-6912 has 1 manufacturer part number on file: 516558-2 (Raytheon Company).
What are the specifications of 516558-2?
Key specifications for 516558-2: Mounting Facility Type and Quantity: 5 UNTHREADED HOLE(S) ALL MOUNTING FACILITIES; Overall Height: 0.125 INCHES NOMINAL IN; Body Style: RECTANGULAR; Unthreaded Mounting Hole Diameter: 0.099 INCHES NOMINAL ALL MOUNTING FACILITIES IN. 4 specifications are documented in the U.S. Government catalog.
Is NSN 5999-01-396-6912 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.