The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-458-6643, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Henkel Corporation. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-458-6643 |
| Primary Part Number | K-4-21 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — No Item Name Available |
| Manufacturer | Henkel Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Shelf Life Code | 0 |
| Criticality Code | N |
| Unit of Issue | EA |
| SMR Code | JN |
| Weight | 0.0100 lbs |
| Cube | 0.0076 cu ft |
| Part Number | Manufacturer |
|---|---|
| K-4-21 | Henkel Corporation (USA) |
| 128-029-0005 | Northrop Grumman Systems Corporation (USA) |
NSN 5999-01-458-6643 is a Heat Sink,electrical-Electronic, manufactured by Henkel Corporation, classified under FSC 5999 (No Item Name Available). Status: active.
NSN 5999-01-458-6643 has 2 cross-referenced part numbers: K-4-21 (Henkel Corporation), 128-029-0005 (Northrop Grumman Systems Corporation).
There are 2 known substitutes for 5999-01-458-6643: 3460-00-337-6332, 1285-01-196-7846. Verify interchangeability with system specifications before substitution.
Key specifications for K-4-21: End Item Identification: JOINT STRS RD E/I FSCM 55285; End Item Identification: JOINT STRS RD E/I FSCM 55285. 2 total characteristics are documented in the Federal Logistics Information System.