The Heat Sink-Insulator, cataloged under National Stock Number 5999-01-394-9506, 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 Naval Sea Systems Command. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5999-01-394-9506 |
| Primary Part Number | 5856690-003 |
| Item Name | Heat Sink-Insulator |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Unthreaded Mounting Hole Diameter | 0.142 INCHES MINIMUM AND 0.152 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN |
| Material Document and Classification | MIL-I-49456 MIL SPEC SINGLE MATERIAL RESPONSE |
| Material | GLASS FIBER AND RUBBER SILICONE CLASS Q |
| 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 | J |
| Part Number | Manufacturer |
|---|---|
| 41-98-02 | Accessories for Electronics Inc Dba Afe (USA) |
| 69-11-D194-1674 | Parker-Hannifin Corporation Dba Chomerics Division Div Chomerics Division (USA) |
| 5856690-003 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 7403-09FR-98 | 5/9 Secondary reference Henkel Corporation |
NSN 5999-01-394-9506 is a Heat Sink-Insulator, manufactured by Naval Sea Systems Command, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-394-9506 has 3 manufacturer part numbers on file: 41-98-02 (Accessories for Electronics Inc Dba Afe), 69-11-D194-1674 (Parker-Hannifin Corporation Dba Chomerics Division Div Chomerics Division), 5856690-003 (Naval Sea Systems Command).
Key specifications for 5856690-003: Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 0.009 INCHES NOMINAL0.009 INCHES NOMINAL IN; Unthreaded Mounting Hole Diameter: 0.142 INCHES MINIMUM AND 0.152 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN; Material Document and Classification: MIL-I-49456 MIL SPEC SINGLE MATERIAL RESPONSE. 4 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.