The Collar,turbine, cataloged under National Stock Number 2825-01-170-3901, is classified within Federal Supply Class 2825 (Steam Turbines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Siemens Energy, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | Collar,turbine |
| FSC / FSG | 2825 — Steam Turbines and Components (FSG 28) |
| Manufacturers | Siemens Energy, Inc. (CAGE 16712) |
| Parameter | Value |
|---|---|
| NSN | 2825-01-170-3901 |
| Primary Part Number | M555HJ |
| Item Name | Collar,turbine |
| FSC / FSG | 2825 / 28 — Steam Turbines and Components |
| Manufacturer | Siemens Energy, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| M555HJ PRIMARY | Siemens Energy, Inc. (USA) |
| F7765 PIECE 59 | Siemens Energy, Inc. (USA) |
| Reference | Meaning |
|---|---|
| F7765 | D/9 Drawing number reference only Siemens Energy, Inc. |
NSN 2825-01-170-3901 is a Collar,turbine, manufactured by Siemens Energy, Inc., classified under FSC 2825, Steam Turbines and Components. Status: active.
NSN 2825-01-170-3901 has 2 manufacturer part numbers on file: M555HJ (Siemens Energy, Inc.), F7765 PIECE 59 (Siemens Energy, Inc.).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.