The Projectile,5 Inch 54 Caliber, cataloged under National Stock Number 1320-01-350-8052, is classified within Federal Supply Class 1320 (Ammunition, Over 125mm) of the Ammunition and Explosives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1320-01-350-8052 |
| Primary Part Number | 6551188 |
| Item Name | Projectile,5 Inch 54 Caliber |
| FSC / FSG | 1320 / 13 — Ammunition, Over 125mm |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Primary Filler Material | COMPOSITION A-3 |
| Model Number | MK157-0 |
| Unit Package Type | PALLET, ADAPTER AND PALLET, METAL |
| Design Type | HIGH EXPLOSIVE |
| Tracer Element | NOT INCLUDED |
| Net Explosive Weight | 8.62 STORAGE POUNDS AND 8.62 TRANSPORTATION POUNDS |
| Fuze Model Number | M732 |
| Dot Proper Shipping Name | PROJECTILES |
| Proximity Fuze Adaptability | ADAPTABLE |
| Dot Identification Number | UN0168 |
| Dot Registration Code | EX1993080469 |
| Unable to Decode | UNABLE TO DECODE |
| Dod Ammunition Code | 1320-D350 |
| Supplementary Charge | NOT INCLUDED |
| Fuze Type | CONTROLLED PROXIMITY |
| Hazardous Material Classification Code | 1.1 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION |
| Unable to Decode | UNABLE TO DECODE |
| Package Reference Number | 1341956 US NAVY AND WR54/6B US NAVY US |
| Gross Weight | 897.4 SHIPPING CONTAINER POUNDS AND 3684.0 PALLET POUNDS |
| Self-Destroying Feature | INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL G — Ammunition & Explosives |
| Hazard | No hazard code in the DLA record (HMIC N) UN ID UN0168 · 1.1 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION · ships as PROJECTILES |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6551188 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| MK157-0 | 5/1 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 1320-D350 | 6/9 Informative reference only U.S. Government activity |
NSN 1320-01-350-8052 is a Projectile,5 Inch 54 Caliber, manufactured by Naval Sea Systems Command, classified under FSC 1320, Ammunition, Over 125mm. Status: active.
NSN 1320-01-350-8052 has 1 manufacturer part number on file: 6551188 (Naval Sea Systems Command).
Key specifications for 6551188: Primary Filler Material: COMPOSITION A-3; Model Number: MK157-0; Unit Package Type: PALLET, ADAPTER AND PALLET, METAL; Design Type: HIGH EXPLOSIVE. 20 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 1320-01-350-8052 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.