The Barrel,automatic Gun, cataloged under National Stock Number 1005-01-462-4306, is classified within Federal Supply Class 1005 (Guns, Through 30mm) of the Weapons group. The manufacturer of record is General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1005-01-462-4306 |
| Primary Part Number | 12011624 |
| Item Name | Barrel,automatic Gun |
| FSC / FSG | 1005 / 10 — Guns, Through 30mm |
| Manufacturer | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems |
| Status | ACTIVE |
| FSC Application Data | CANNON, 20MM, ANTIAIRCRAFT GUN MM |
| Rifle Bore Groove Quantity | 9 |
| Weapon Model Number | M61A1, M197 |
| Material Document and Classification | MIL-S-46047 MIL SPEC SINGLE MATERIAL RESPONSE |
| Size Designation | 20 MILLIMETER MM |
| Weapon Size Designation | 20 MILLIMETER MM |
| Land Width | 0.082 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE LOCATION NOT OTHERWISE SPECIFIED |
| Surface Treatment | CHROMIUM INSIDE |
| Material | STEEL UNS K14185 |
| Groove Width | 0.201 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN |
| Rifling Direction | RIGHT-HAND |
| 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 |
|---|---|
| 12011624 | General Dynamics - Ots, Inc. (USA) |
| 12011624 PRIMARY | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA) |
| Reference | Meaning |
|---|---|
| 1005PL1612507 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 12011624 | 5/9 Secondary reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
NSN 1005-01-462-4306 is a Barrel,automatic Gun, manufactured by General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems, classified under FSC 1005, Guns, Through 30mm. Status: active.
NSN 1005-01-462-4306 has 2 manufacturer part numbers on file: 12011624 (General Dynamics - Ots, Inc.), 12011624 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems).
Key specifications for 12011624: FSC Application Data: CANNON, 20MM, ANTIAIRCRAFT GUN MM; Rifle Bore Groove Quantity: 9; Weapon Model Number: M61A1, M197; Material Document and Classification: MIL-S-46047 MIL SPEC SINGLE MATERIAL RESPONSE. 12 specifications are 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 1005-01-462-4306 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.