The Breech Mechanism, cataloged under National Stock Number 1025-01-059-2487, is classified within Federal Supply Class 1025 (Guns, Over 150mm Through 200mm) of the Weapons group. The manufacturer of record is Army, United States Department of the Dba Watervliet Arsenal Div Business Development. Government technical data includes 1 specification, 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 | 1025-01-059-2487 |
| Primary Part Number | 11578890 |
| Item Name | Breech Mechanism |
| FSC / FSG | 1025 / 10 — Guns, Over 150mm Through 200mm |
| Manufacturer | Army, United States Department of the Dba Watervliet Arsenal Div Business Development |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF COUNTERBALANCE ASSEMBLY,PART NUMBER 11578900;BREECH RING ASSEMBLY,P/N 11578889;SPINDLE ASSY,P/N 11578925;BREECH BLOCK ASSY,P/N 11578916 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 11578890 PRIMARY | Army, United States Department of the Dba Watervliet Arsenal Div Business Development (USA) |
NSN 1025-01-059-2487 is a Breech Mechanism, manufactured by Army, United States Department of the Dba Watervliet Arsenal Div Business Development, classified under FSC 1025, Guns, Over 150mm Through 200mm. Status: active.
NSN 1025-01-059-2487 has 1 manufacturer part number on file: 11578890 (Army, United States Department of the Dba Watervliet Arsenal Div Business Development).
Key specifications for 11578890: General Characteristics Item Description: CONSISTS OF COUNTERBALANCE ASSEMBLY,PART NUMBER 11578900;BREECH RING ASSEMBLY,P/N 11578889;SPINDLE ASSY,P/N 11578925;BREECH BLOCK ASSY,P/N 11578916. 1 specification is 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 1025-01-059-2487 has DEMIL Code D. 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.