The Heat Sink-Insulator, cataloged under National Stock Number 5999-01-413-2448, 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 Div Rmd Strategic. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5999-01-413-2448 |
| Primary Part Number | 721469-1 |
| Item Name | Heat Sink-Insulator |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Raytheon Company Div Rmd Strategic |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 8 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Unthreaded Mounting Hole Diameter | 0.020 INCHES MINIMUM AND 0.0318 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN |
| Accommodated Device Mounting Hole Pattern Style | EIGHT HOLE |
| Material | BERYLLIUM OXIDE |
| Accommodated Device Mounting Hole Quantity | 8 |
| 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 | X |
| Unit of Issue | EA |
| Acquisition advice code | Z |
| Weight | 0.0100 lbs |
| Cube | 0.0009 cu ft |
| Part Number | Manufacturer |
|---|---|
| 721469-1 PRIMARY | Raytheon Company Div Rmd Strategic (USA) |
| 721469-1 | American Beryllia Inc (USA) |
| Reference | Meaning |
|---|---|
| 721469-1 | 5/9 Secondary reference General Ceramics Inc National Beryllia Div |
| 721469-1 | 5/9 Secondary reference Brush Wellman Inc Consolidated Ceramics and Metalizing Corp Div |
| SQ24301 | 5/9 Secondary reference Materion Ceramics Inc. |
NSN 5999-01-413-2448 is a Heat Sink-Insulator, manufactured by Raytheon Company Div Rmd Strategic, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-413-2448 has 2 manufacturer part numbers on file: 721469-1 (Raytheon Company Div Rmd Strategic), 721469-1 (American Beryllia Inc).
Key specifications for 721469-1: Mounting Facility Type and Quantity: 8 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Unthreaded Mounting Hole Diameter: 0.020 INCHES MINIMUM AND 0.0318 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN; Accommodated Device Mounting Hole Pattern Style: EIGHT HOLE; Material: BERYLLIUM OXIDE. 5 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.