The Cartridge,20 Millimeter, cataloged under National Stock Number 1305-01-117-5316, is classified within Federal Supply Class 1305 (Ammunition, Through 30mm) of the Ammunition and Explosives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 1305-01-117-5316 |
| Item Name | Cartridge,20 Millimeter |
| FSC / FSG | 1305 / 13 — Ammunition, Through 30mm |
| Status | ACTIVE |
| Weapon for Which Designed | GUN, CANNON M39 AND GUN, CANNON M61 |
| Tracer Element | NOT INCLUDED |
| Net Explosive Weight | 0.0252 STORAGE POUNDS AND 0.1109 TRANSPORTATION POUNDS |
| Fuze Model Number | M505A3 CLIPPED |
| Dot Proper Shipping Name | CARTRIDGES FOR WEAPONS |
| Dot Identification Number | UN0321 |
| Unable to Decode | UNABLE TO DECODE |
| Dot Registration Code | EX1987120716 |
| Projectile Model Number | M56A3 CLIPPED |
| Cartridge Model Number | M56A3 CLIPPED |
| Dod Ammunition Code | 1305-A890 |
| Detonation Initiation Method | ELECTRIC |
| Fuze Type | POINT DETONATING CLIPPED |
| Hazardous Material Classification Code | 1.2.2 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION |
| Unable to Decode | UNABLE TO DECODE |
| Material | COPPER ALLOY CARTRIDGE CASE CLIPPED |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY UNIT PACKAGE QUANTITY |
| 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 |
| Reference | Meaning |
|---|---|
| 1305-A890 | 6/9 Informative reference only U.S. Government activity |
| 7259023 | 3/1 Design control — primary reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
NSN 1305-01-117-5316 is a Cartridge,20 Millimeter, classified under FSC 1305, Ammunition, Through 30mm. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 1305-01-118-9928, 1305-01-209-9081, 1305-01-211-6248. Verify interchangeability with system specifications before substitution.
Key specifications for 1305-01-117-5316: Weapon for Which Designed: GUN, CANNON M39 AND GUN, CANNON M61; Tracer Element: NOT INCLUDED; Net Explosive Weight: 0.0252 STORAGE POUNDS AND 0.1109 TRANSPORTATION POUNDS; Fuze Model Number: M505A3 CLIPPED. 17 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 1305-01-117-5316 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.