The Cartridge,5.56 Millimeter, cataloged under National Stock Number 1305-01-680-9163, is classified within Federal Supply Class 1305 (Ammunition, Through 30mm) of the Ammunition and Explosives group. The manufacturer of record is Engel Ballistic Research Inc Div Military & Police Ammunition. Government technical data includes 3 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1305-01-680-9163 |
| Primary Part Number | 5.56 X 45MM FRANGIBLE 55 GR. |
| Item Name | Cartridge,5.56 Millimeter |
| FSC / FSG | 1305 / 13 — Ammunition, Through 30mm |
| Manufacturer | Engel Ballistic Research Inc Div Military & Police Ammunition |
| Status | ACTIVE |
| Projectile Weight | 55.0 GRAINS |
| Cartridge Grouping Type | SINGLE ROUND |
| Muzzle Velocity | 869.0 METERS PER SECOND NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL G — Ammunition & Explosives |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5.56 X 45MM FRANGIBLE 55 GR. PRIMARY | Engel Ballistic Research Inc Div Military & Police Ammunition (USA) |
NSN 1305-01-680-9163 is a Cartridge,5.56 Millimeter, manufactured by Engel Ballistic Research Inc Div Military & Police Ammunition, classified under FSC 1305, Ammunition, Through 30mm. Status: active.
NSN 1305-01-680-9163 has 1 manufacturer part number on file: 5.56 X 45MM FRANGIBLE 55 GR. (Engel Ballistic Research Inc Div Military & Police Ammunition).
Key specifications for 5.56 X 45MM FRANGIBLE 55 GR.: Projectile Weight: 55.0 GRAINS; Cartridge Grouping Type: SINGLE ROUND; Special Features: PROJECTILE FRANGIBLE; G1 BALLISTIC COEFFICIENT .105; RECOMMENDED BARREL TWIST RATE 1 IN 7 INCHES; DESIGNED TO BREAK APART INTO DUST AND SMALL FRAGMENTS UPON CONTACT WITH HARD SURFACES, SIGNIFICANTLY REDUCING RICOCHET AND OVER PENETRATION IN; Muzzle Velocity: 869.0 METERS PER SECOND NOMINAL. 3 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1305-01-680-9163 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.