The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-309-6873, 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 Northrop Grumman Systems Corporation Div Marine Systems. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-309-6873 |
| Primary Part Number | 3387C14-H01 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Northrop Grumman Systems Corporation Div Marine Systems |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE |
| Criticality Code Justification | FEAT |
| Unthreaded Mounting Hole Diameter | 0.185 INCHES MINIMUM AND 0.195 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | Y |
| Unit of Issue | EA |
| Acquisition advice code | Y |
| Weight | 0.2500 lbs |
| Cube | 0.0130 cu ft |
| Part Number | Manufacturer |
|---|---|
| 3387C14-H01 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| SIB-2008 | Sigmation Inc (USA) |
| Reference | Meaning |
|---|---|
| 3387C14-H01 | C/1 Advisory reference — outside the item-of-supply concept Boyd Laconia Llc |
| 3387C14-H01 | 5/9 Secondary reference Thermalloy Co Inc |
| 3387C14-H01 | 5/9 Secondary reference Aavid Thermalloy Llc |
NSN 5999-01-309-6873 is a Heat Sink,electrical-Electronic, manufactured by Northrop Grumman Systems Corporation Div Marine Systems, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-309-6873 has 2 manufacturer part numbers on file: 3387C14-H01 (Northrop Grumman Systems Corporation Div Marine Systems), SIB-2008 (Sigmation Inc).
Key specifications for 3387C14-H01: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 0.450 INCHES MINIMUM AND 0.480 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE; Criticality Code Justification: FEAT. 6 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
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.