The Cartridge,20 Millimeter, cataloged under National Stock Number 1305-00-262-4181, is classified within Federal Supply Class 1305 (Ammunition, Through 30mm) of the Ammunition and Explosives group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 18 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 12 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1305-00-262-4181 |
| Primary Part Number | 7259053 |
| Item Name | Cartridge,20 Millimeter |
| FSC / FSG | 1305 / 13 — Ammunition, Through 30mm |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Weapon for Which Designed | GUN, CANNON M61 |
| Tracer Element | NOT INCLUDED |
| Net Explosive Weight | 0.0285 STORAGE POUNDS AND 0.0285 TRANSPORTATION POUNDS |
| Fuze Model Number | M505A2 LOCATION NOT OTHERWISE SPECIFIED |
| Dot Proper Shipping Name | CARTRIDGES FOR WEAPONS |
| Projectile Filler Type | MOX-2B LOCATION NOT OTHERWISE SPECIFIED |
| Dot Identification Number | UN0321 |
| Unable to Decode | UNABLE TO DECODE |
| Dot Registration Code | EX1988100534 |
| Projectile Model Number | M56A2 LOCATION NOT OTHERWISE SPECIFIED |
| Cartridge Model Number | M56A2 LOCATION NOT OTHERWISE SPECIFIED |
| Dod Ammunition Code | 1305-A890 |
| Detonation Initiation Method | ELECTRIC |
| Fuze Type | POINT DETONATING LOCATION NOT OTHERWISE SPECIFIED |
| Hazardous Material Classification Code | 1.2.2 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION |
| Unable to Decode | UNABLE TO DECODE |
| Material | COPPER ALLOY CARTRIDGE CASE |
| Gross Weight | 92.5 SHIPPING CONTAINER POUNDS AND 3580.0 PALLET POUNDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL G — Ammunition & Explosives |
| Hazard | Hazardous per DLA record (HMIC Y) UN ID UN0321 · 1.2.2 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION · ships as CARTRIDGES FOR WEAPONS |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 7259053 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| Reference | Meaning |
|---|---|
| 1305-A890 | 6/9 Informative reference only U.S. Government activity |
NSN 1305-00-262-4181 is a Cartridge,20 Millimeter, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 1305, Ammunition, Through 30mm. Status: active.
NSN 1305-00-262-4181 has 1 manufacturer part number on file: 7259053 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
12 possible matches (shared part number, not a government interchangeability claim): 1305-00-308-5575, 1305-00-542-0406, 1305-00-850-3676. Verify interchangeability with system specifications before substitution.
Key specifications for 7259053: Weapon for Which Designed: GUN, CANNON M61; Tracer Element: NOT INCLUDED; Net Explosive Weight: 0.0285 STORAGE POUNDS AND 0.0285 TRANSPORTATION POUNDS; Fuze Model Number: M505A2 LOCATION NOT OTHERWISE SPECIFIED. 18 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). The government record also carries hazard data: DOT hazard class, UN number, or related classification fields. Special handling, storage, and shipping requirements apply per the cited government fields.
NSN 1305-00-262-4181 has DEMIL Code G. 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.