The Barrel,automatic Gun, cataloged under National Stock Number 1005-01-496-9123, is classified within Federal Supply Class 1005 (Guns, Through 30mm) of the Weapons group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1005-01-496-9123 |
| Item Name | Barrel,automatic Gun |
| FSC / FSG | 1005 / 10 — Guns, Through 30mm |
| Status | ACTIVE |
| Caliber Quantity Per Rifling Turn | 1 TURN IN 326.571 CALIBERS TO 1 TURN IN 25.916 CALIBERS |
| FSC Application Data | CANNON,20MM,ANTIAIRCRAFT GUN MM |
| Surface Treatment Document and Classification | QQ-C-320, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE INSIDE |
| Rifle Bore Groove Quantity | 9 |
| Weapon Model Number | XM168 |
| 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 MANGANESE 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 |
| Reference | Meaning |
|---|---|
| 9275791 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1005-01-496-9123 is a Barrel,automatic Gun, classified under FSC 1005, Guns, Through 30mm. Status: active.
Key specifications for 1005-01-496-9123: Caliber Quantity Per Rifling Turn: 1 TURN IN 326.571 CALIBERS TO 1 TURN IN 25.916 CALIBERS; FSC Application Data: CANNON,20MM,ANTIAIRCRAFT GUN MM; Surface Treatment Document and Classification: QQ-C-320, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE INSIDE; Rifle Bore Groove Quantity: 9. 14 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 1005-01-496-9123 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.