The Cartridge,20 Millimeter, cataloged under National Stock Number 1305-00-522-3707, is classified within Federal Supply Class 1305 (Ammunition, Through 30mm) of the Ammunition and Explosives group. Government technical data includes 30 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 1305-00-522-3707 |
| Item Name | Cartridge,20 Millimeter |
| FSC / FSG | 1305 / 13 — Ammunition, Through 30mm |
| Status | ACTIVE |
| Weapon for Which Designed | GUN M61 |
| Cartridge Grouping Functional Sequence | 7-1 |
| Cartridge Quantity | 100 |
| Tracer Element | INCLUDED |
| Net Explosive Weight | 0.02389 STORAGE POUNDS AND 0.11391 TRANSPORTATION POUNDS |
| Fuze Model Number | M505A3 LOCATION NOT OTHERWISE SPECIFIED |
| Dot Proper Shipping Name | CARTRIDGES FOR WEAPONS |
| Projectile Filler Type | TRACER COMPOSITION PACK BARREL |
| Projectile Filler Type | H-761 CLIPPED |
| Link Feed Direction | RIGHT-HAND |
| Dot Identification Number | UN0321 |
| Unable to Decode | UNABLE TO DECODE |
| Dot Registration Code | EX1988120449 |
| Projectile Model Number | M221 PACK BARREL |
| Projectile Model Number | NONE CLIPPED |
| End Link Model Number | NONE |
| Cartridge Model Number | M220 PACK BARREL |
| Cartridge Model Number | M56A3 CLIPPED |
| Dod Ammunition Code | 1305-A655 |
| 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 |
| Cartridge Grouping Type | LINKED |
| Link Model Number | M14A1 |
| Material | COPPER ALLOY CARTRIDGE CASE PACK BARREL |
| Material | COPPER ALLOY CARTRIDGE CASE CLIPPED |
| Gross Weight | 94.0 SHIPPING CONTAINER POUNDS AND 2126.0 PALLET POUNDS |
| Tracer Element Model Number | NONE |
| Reference Number Differentiating Characteristics | DIFFERENTIATED BY CARTRIDGE GROUP CONFIGURATION,FUNCTIONAL SEQUENCE,LINK MODEL,AND PACKAGING |
| 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 |
|---|---|
| 7259023 | 5/1 Secondary reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| 7259146 | 3/1 Design control — primary reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| 1305-A655 | 6/9 Informative reference only U.S. Government activity |
NSN 1305-00-522-3707 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): 1305-00-785-2829, 1305-00-785-2848, 1305-00-926-4058. Verify interchangeability with system specifications before substitution.
Key specifications for 1305-00-522-3707: Weapon for Which Designed: GUN M61; Cartridge Grouping Functional Sequence: 7-1; Cartridge Quantity: 100; Tracer Element: INCLUDED. 30 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 1305-00-522-3707 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.