The Ordnance Subsystem,rocket Motor, cataloged under National Stock Number 1337-00-482-4651, is classified within Federal Supply Class 1337 (Guided Missile and Space Vehicle Explosive Propulsion Units, Solid Fuel; and Components) of the Ammunition and Explosives group. The manufacturer of record is Atk Launch Systems Llc Dba Atk Launch Systems-Promontory Div Propulsion Systems - Promontory. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1337-00-482-4651 |
| Primary Part Number | 1147373-19 |
| Item Name | Ordnance Subsystem,rocket Motor |
| FSC / FSG | 1337 / 13 — Guided Missile and Space Vehicle Explosive Propulsion Units, Solid Fuel; and Components |
| Manufacturer | Atk Launch Systems Llc Dba Atk Launch Systems-Promontory Div Propulsion Systems - Promontory |
| Status | ACTIVE |
| General Characteristics Item Description | CONTAINS SQUIB CTG 1128115-41,IGNITER ASSY 1128070-13,ARM-DISARM AND SAFE-ARM MECHANISM 1214110-9 |
| Net Explosive Weight | 0.0073 STORAGE POUNDS AND 0.0073 TRANSPORTATION POUNDS |
| Dot Proper Shipping Name | FUZES, DETONATING |
| Criticality Code Justification | EXWT |
| Dot Identification Number | UN0257 |
| Dot Registration Code | EX1988100989 |
| Dod Ammunition Code | LARC-AY49 |
| Dot Hazard Class/division | 1.4 |
| Hazardous Material Classification Code | 1.4 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL G — Ammunition & Explosives |
| Hazard | Hazardous per DLA record (HMIC Y) DOT hazard class/division 1.4 · UN ID UN0257 · 1.4 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION · ships as FUZES, DETONATING |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 1147373-19 PRIMARY | Atk Launch Systems Llc Dba Atk Launch Systems-Promontory Div Propulsion Systems - Promontory (USA) |
| Reference | Meaning |
|---|---|
| LARC-AY49 | 6/9 Informative reference only U.S. Government activity |
| 1147373-19 | 5/9 Secondary reference Aerojet Rocketdyne Inc |
NSN 1337-00-482-4651 is a Ordnance Subsystem,rocket Motor, manufactured by Atk Launch Systems Llc Dba Atk Launch Systems-Promontory Div Propulsion Systems - Promontory, classified under FSC 1337, Guided Missile and Space Vehicle Explosive Propulsion Units, Solid Fuel; and Components. Status: active.
NSN 1337-00-482-4651 has 1 manufacturer part number on file: 1147373-19 (Atk Launch Systems Llc Dba Atk Launch Systems-Promontory Div Propulsion Systems - Promontory).
1 possible match (shared part number, not a government interchangeability claim): 1337-01-495-9792. Verify interchangeability with system specifications before substitution.
Key specifications for 1147373-19: General Characteristics Item Description: CONTAINS SQUIB CTG 1128115-41,IGNITER ASSY 1128070-13,ARM-DISARM AND SAFE-ARM MECHANISM 1214110-9; Net Explosive Weight: 0.0073 STORAGE POUNDS AND 0.0073 TRANSPORTATION POUNDS; Dot Proper Shipping Name: FUZES, DETONATING; Criticality Code Justification: EXWT. 9 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 1337-00-482-4651 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.