The Rocket Motor, cataloged under National Stock Number 1340-01-154-1679, is classified within Federal Supply Class 1340 (Rockets, Rocket Ammunition and Rocket Components) of the Ammunition and Explosives group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 1340-01-154-1679 |
| Item Name | Rocket Motor |
| FSC / FSG | 1340 / 13 — Rockets, Rocket Ammunition and Rocket Components |
| Status | ACTIVE |
| Igniter Model Number | MK125-5 |
| Nominal Thrust | 1516.000 POUNDS LBS |
| Propellant Inhibitor | INCLUDED |
| Nominal Burning Time in Seconds | 1.10 |
| Model Number | MK66-2 |
| Motor Propellant Material | ETHYL, CELLULOSE |
| Motor Propellant Grain Weight | 7.1 POUNDS LBS |
| Net Explosive Weight | 7.12205 STORAGE POUNDS AND 7.12205 TRANSPORTATION POUNDS |
| Straight Section Outside Diameter | 2.750 INCHES NOMINAL IN |
| Dot Registration Code | EX1987080592 |
| Dod Ammunition Code | 1340-J147 |
| Igniter | INCLUDED |
| Size Designation | 2.75 INCH IN |
| Hazardous Material Classification Code | 1.3 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION |
| Unable to Decode | UNABLE TO DECODE |
| Package Reference Number | 9335618 US ARMY US |
| Specific Usage Design | 2.75 IN. ROCKET IN |
| Motor Propellant Grain Model Number | MK 90 MOD 0 |
| Motor Propellant Grain Quantity | 1 |
| Integral Stabilization Method | FIN |
| Igniter Installation | INSTALLED |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY UNIT PKG TYPE,UNIT PKG QUANTITY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL G — Ammunition & Explosives |
| Hazard | Hazardous per DLA record (HMIC Y) 1.3 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 233AS500 | 3/1 Design control — primary reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 1340-J147 | 6/9 Informative reference only U.S. Government activity |
NSN 1340-01-154-1679 is a Rocket Motor, classified under FSC 1340, Rockets, Rocket Ammunition and Rocket Components. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 1340-01-154-1680, 1340-01-245-3945. Verify interchangeability with system specifications before substitution.
Key specifications for 1340-01-154-1679: Igniter Model Number: MK125-5; Nominal Thrust: 1516.000 POUNDS LBS; Propellant Inhibitor: INCLUDED; Nominal Burning Time in Seconds: 1.10. 22 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). 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 1340-01-154-1679 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.