The Cartridge,20 Millimeter,practice, cataloged under National Stock Number 1305-01-451-8659, is classified within Federal Supply Class 1305 (Ammunition, Through 30mm) of the Ammunition and Explosives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 1305-01-451-8659 |
| Item Name | Cartridge,20 Millimeter,practice |
| FSC / FSG | 1305 / 13 — Ammunition, Through 30mm |
| Status | ACTIVE |
| Net Explosive Weight | 0.0761 STORAGE POUNDS AND 0.0761 TRANSPORTATION POUNDS |
| Dot Proper Shipping Name | CARTRIDGES FOR WEAPONS, INERT PROJECTILE |
| Dot Identification Number | UN0339 |
| Dot Registration Code | EX1998110083 |
| Dod Ammunition Code | 1305-AA27 |
| Hazardous Material Classification Code | 1.4 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION |
| Reference Number Differentiating Characteristics | DIFFERENTIATED BY MATERIAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL G — Ammunition & Explosives |
| Hazard | No hazard code in the DLA record (HMIC N) UN ID UN0339 · 1.4 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION · ships as CARTRIDGES FOR WEAPONS, INERT PROJECTILE |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1575AS500 | 5/1 Secondary reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 1305-AA27 | 6/9 Informative reference only U.S. Government activity |
| 1696AS234-7 | 3/1 Design control — primary reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 1305-01-451-8659 is a Cartridge,20 Millimeter,practice, classified under FSC 1305, Ammunition, Through 30mm. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 1305-01-501-7178, 1305-01-666-5251. Verify interchangeability with system specifications before substitution.
Key specifications for 1305-01-451-8659: Net Explosive Weight: 0.0761 STORAGE POUNDS AND 0.0761 TRANSPORTATION POUNDS; Dot Proper Shipping Name: CARTRIDGES FOR WEAPONS, INERT PROJECTILE; Dot Identification Number: UN0339; Dot Registration Code: EX1998110083. 7 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 1305-01-451-8659 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.