The Upper Receiver, cataloged under National Stock Number 1005-01-589-7080, is classified within Federal Supply Class 1005 (Guns, Through 30mm) of the Weapons group. The manufacturer of record is Heckler & Koch Defense Inc Dba Hkd Div Heckler and Koch Defense Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Upper Receiver |
| FSC / FSG | 1005 — Guns, Through 30mm (FSG 10) |
| Manufacturers | Heckler & Koch Defense Inc Dba Hkd Div Heckler and Koch Defense Inc (CAGE 3HN73) |
| Parameter | Value |
|---|---|
| NSN | 1005-01-589-7080 |
| Primary Part Number | 50203598 |
| Item Name | Upper Receiver |
| FSC / FSG | 1005 / 10 — Guns, Through 30mm |
| Manufacturer | Heckler & Koch Defense Inc Dba Hkd Div Heckler and Koch Defense Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 50203598 PRIMARY | Heckler & Koch Defense Inc Dba Hkd Div Heckler and Koch Defense Inc (USA) |
| Reference | Meaning |
|---|---|
| 203598 | 5/9 Secondary reference Heckler & Koch Defense Inc Dba Hkd Div Heckler and Koch Defense Inc |
NSN 1005-01-589-7080 is a Upper Receiver, manufactured by Heckler & Koch Defense Inc Dba Hkd Div Heckler and Koch Defense Inc, classified under FSC 1005, Guns, Through 30mm. Status: active.
NSN 1005-01-589-7080 has 1 manufacturer part number on file: 50203598 (Heckler & Koch Defense Inc Dba Hkd Div Heckler and Koch Defense Inc).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-632-9555. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1005-01-589-7080 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.