The Rocket,practice,21 Millimeter Su, cataloged under National Stock Number 1340-01-533-8258, is classified within Federal Supply Class 1340 (Rockets, Rocket Ammunition and Rocket Components) of the Ammunition and Explosives group. The manufacturer of record is Nammo Defense Systems Inc. Dba Nammo Defense Systems Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Rocket,practice,21 Millimeter Su |
| FSC / FSG | 1340 — Rockets, Rocket Ammunition and Rocket Components (FSG 13) |
| Manufacturers | Nammo Defense Systems Inc. Dba Nammo Defense Systems Inc (CAGE 12116) |
| Parameter | Value |
|---|---|
| NSN | 1340-01-533-8258 |
| Primary Part Number | 51739 |
| Item Name | Rocket,practice,21 Millimeter Su |
| FSC / FSG | 1340 / 13 — Rockets, Rocket Ammunition and Rocket Components |
| Manufacturer | Nammo Defense Systems Inc. Dba Nammo Defense Systems Inc |
| Status | ACTIVE |
| Dod Ammunition Code | 1340-HA46 |
| 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 |
|---|---|
| 51739 PRIMARY | Nammo Defense Systems Inc. Dba Nammo Defense Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 1340-HA46 | 6/9 Informative reference only U.S. Government activity |
NSN 1340-01-533-8258 is a Rocket,practice,21 Millimeter Su, manufactured by Nammo Defense Systems Inc. Dba Nammo Defense Systems Inc, classified under FSC 1340, Rockets, Rocket Ammunition and Rocket Components. Status: active.
NSN 1340-01-533-8258 has 1 manufacturer part number on file: 51739 (Nammo Defense Systems Inc. Dba Nammo Defense Systems Inc).
Key specifications for 51739: Dod Ammunition Code: 1340-HA46; Special Features: ROCKET PRACTICE, 21MM, M72AS INERT, DRILL ROUND FOR THE LIGHTWEIGHT ANTI-ARMOR WEAPON ( LAW ) M72 TRAINER. MM. 1 specification is documented in the U.S. Government catalog.
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 1340-01-533-8258 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.