The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-445-9719, 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 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings). Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-445-9719 |
| Primary Part Number | LO4719 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 UNTHREADED HOLE(S) FIRST MOUNTING FACILITY |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) SECOND MOUNTING FACILITY |
| Surface Treatment Document and Classification | MIL-A-8625, TY 2, CL 1 MIL SPEC SINGLE TREATMENT RESPONSE |
| Body Style | EXTRUDED |
| Criticality Code Justification | ZZZY |
| Unthreaded Mounting Hole Diameter | 0.202 INCHES MINIMUM AND 0.193 INCHES MAXIMUM FIRST MOUNTING FACILITY IN |
| Unthreaded Mounting Hole Diameter | 0.243 INCHES MINIMUM AND 0.263 INCHES MAXIMUM SECOND MOUNTING FACILITY IN |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY |
| Reference Number Differentiating Characteristics | REFERENCE NUMBER DIFFERENTIATING MATERIAL WILL BE IN ACCORDANCE WITH NAVAL INVENTORY CONTROL POINT ACTIVITY HX QUALITY CONTROL. MANUFACTURING AND TESTING SPECIFICATIONS AVAILABLE AT THE DLA ICP. |
| 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 | S |
| Unit of Issue | EA |
| Acquisition advice code | Z |
| Weight | 0.5400 lbs |
| Cube | 0.0104 cu ft |
| Part Number | Manufacturer |
|---|---|
| LO4719 | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| Reference | Meaning |
|---|---|
| 34-2185 | 3/1 Design control — primary reference Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc |
NSN 5999-01-445-9719 is a Heat Sink,electrical-Electronic, manufactured by Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings), classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-445-9719 has 1 manufacturer part number on file: LO4719 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)).
Key specifications for LO4719: Mounting Facility Type and Quantity: 1 UNTHREADED HOLE(S) FIRST MOUNTING FACILITY; Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SECOND MOUNTING FACILITY; Overall Height: 0.935 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-A-8625, TY 2, CL 1 MIL SPEC SINGLE TREATMENT RESPONSE. 10 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.