The Kit,extension, cataloged under National Stock Number 5999-01-445-6659, 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 Hewlett-Packard Company Dba HP. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Item Name | Kit,extension |
| FSC / FSG | 5999 — Miscellaneous Electrical and Electronic Components (FSG 59) |
| Manufacturers | Hewlett-Packard Company Dba HP (CAGE 28480); Buckley, Michael Dba R B Enterprises (CAGE 1FEQ1) |
| Parameter | Value |
|---|---|
| NSN | 5999-01-445-6659 |
| Primary Part Number | A4219A |
| Item Name | Kit,extension |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Hewlett-Packard Company Dba HP |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| 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 | 1.2500 lbs |
| Cube | 0.2620 cu ft |
| Part Number | Manufacturer |
|---|---|
| A4219A PRIMARY | Hewlett-Packard Company Dba HP (USA) |
| A4219A | Buckley, Michael Dba R B Enterprises (USA) |
| Reference | Meaning |
|---|---|
| A4262A | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
| 77A119752P3 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rms |
| 7261635P2 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rms |
| A4219A | C/1 Advisory reference — outside the item-of-supply concept Celestica New England |
NSN 5999-01-445-6659 is a Kit,extension, manufactured by Hewlett-Packard Company Dba HP, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-445-6659 has 2 manufacturer part numbers on file: A4219A (Hewlett-Packard Company Dba HP), A4219A (Buckley, Michael Dba R B Enterprises).
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5999-01-445-6659 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.