The Rocket Motor, cataloged under National Stock Number 1340-00-042-9271, is classified within Federal Supply Class 1340 (Rockets, Rocket Ammunition and Rocket Components) of the Ammunition and Explosives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Rocket Motor |
| FSC / FSG | 1340 — Rockets, Rocket Ammunition and Rocket Components (FSG 13) |
| Manufacturers | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (CAGE 30003) |
| Parameter | Value |
|---|---|
| NSN | 1340-00-042-9271 |
| Primary Part Number | LD546627 |
| Item Name | Rocket Motor |
| FSC / FSG | 1340 / 13 — Rockets, Rocket Ammunition and Rocket Components |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Igniter Model Number | MK 263 MOD 1 |
| Nominal Thrust | 2650.000 POUNDS LBS |
| Propellant Inhibitor | NOT INCLUDED |
| Nominal Burning Time in Seconds | 0.70 |
| Model Number | MK 34 MOD 1 |
| Motor Propellant Grain Weight | 9.5 POUNDS LBS |
| Net Explosive Weight | 9.0193 STORAGE POUNDS AND 9.0193 TRANSPORTATION POUNDS |
| Straight Section Outside Diameter | 5.380 INCHES NOMINAL IN |
| Dot Registration Code | EX1988030766 |
| Dod Ammunition Code | 1340-J149 |
| Igniter | INCLUDED |
| Hazardous Material Classification Code | 1.3 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION |
| Resonance Rod | NOT INCLUDED |
| Cable Assembly Connector Type | TWO-PRONG SPECIAL |
| Motor Propellant Grain Model Number | MK 74 MOD 0 |
| Cable Assembly Model Number | NOT ASSIGNED |
| Motor Propellant Grain Quantity | 7 |
| Igniter Installation | INSTALLED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL G — Ammunition & Explosives |
| Hazard | No hazard code in the DLA record (HMIC N) 1.3 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| LD546627 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 2434633 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 1340-J149 | 6/9 Informative reference only U.S. Government activity |
NSN 1340-00-042-9271 is a Rocket Motor, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 1340, Rockets, Rocket Ammunition and Rocket Components. Status: active.
NSN 1340-00-042-9271 has 2 manufacturer part numbers on file: LD546627 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 2434633 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for LD546627: Igniter Model Number: MK 263 MOD 1; Nominal Thrust: 2650.000 POUNDS LBS; Propellant Inhibitor: NOT INCLUDED; Nominal Burning Time in Seconds: 0.70. 18 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 1340-00-042-9271 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.