The Cartridge,20 Millimeter, cataloged under National Stock Number 1305-00-294-2234, is classified within Federal Supply Class 1305 (Ammunition, Through 30mm) of the Ammunition and Explosives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 1305-00-294-2234 |
| Primary Part Number | 12001011 |
| Item Name | Cartridge,20 Millimeter |
| FSC / FSG | 1305 / 13 — Ammunition, Through 30mm |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Weapon for Which Designed | GUN, ANTI-AIRCRAFT |
| Tracer Element | NOT INCLUDED |
| Net Explosive Weight | 0.16787 STORAGE POUNDS AND 0.16787 TRANSPORTATION POUNDS |
| Fuze Model Number | MK 26 ALL MODS LOCATION NOT OTHERWISE SPECIFIED |
| Dot Proper Shipping Name | CARTRIDGES FOR WEAPONS |
| Projectile Filler Type | TETRYL OR PENTOLITE LOCATION NOT OTHERWISE SPECIFIED |
| Dot Identification Number | UN0321 |
| Unable to Decode | UNABLE TO DECODE |
| Dot Registration Code | EX1988040273 |
| Projectile Model Number | MK 3,4 CLIPPED |
| Projectile Model Number | MK 7 ALL MODS PACK BARREL |
| Dod Ammunition Code | 1305-A743 |
| Detonation Initiation Method | PERCUSSION |
| 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 |
| Cartridge Grouping Type | SINGLE ROUND |
| Material | COPPER ALLOY OR STEEL CARTRIDGE CASE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL G — Ammunition & Explosives |
| Hazard | No hazard code in the DLA record (HMIC N) UN ID UN0321 · 1.2.2 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION · ships as CARTRIDGES FOR WEAPONS |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 12001011 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 1305-A743 | 6/9 Informative reference only U.S. Government activity |
NSN 1305-00-294-2234 is a Cartridge,20 Millimeter, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 1305, Ammunition, Through 30mm. Status: active.
NSN 1305-00-294-2234 has 1 manufacturer part number on file: 12001011 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
2 possible matches (shared part number, not a government interchangeability claim): 5935-01-239-0774, 5999-01-249-7402. Verify interchangeability with system specifications before substitution.
Key specifications for 12001011: Weapon for Which Designed: GUN, ANTI-AIRCRAFT; Tracer Element: NOT INCLUDED; Net Explosive Weight: 0.16787 STORAGE POUNDS AND 0.16787 TRANSPORTATION POUNDS; Fuze Model Number: MK 26 ALL MODS LOCATION NOT OTHERWISE SPECIFIED. 18 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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 1305-00-294-2234 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.