The Ring,butt,turbine, cataloged under National Stock Number 2825-01-218-1664, is classified within Federal Supply Class 2825 (Steam Turbines and Components) of the Engines, Turbines, and Components group. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Ring,butt,turbine |
| FSC / FSG | 2825 — Steam Turbines and Components (FSG 28) |
| Parameter | Value |
|---|---|
| NSN | 2825-01-218-1664 |
| Item Name | Ring,butt,turbine |
| FSC / FSG | 2825 / 28 — Steam Turbines and Components |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Reference | Meaning |
|---|---|
| 5573628-035 | 3/9 Design control — primary reference General Electric Co Naval and Drive Turbine Systems Dept |
| PL-817D477 PIECE 9 | 5/9 Secondary reference General Electric Company |
| 5573628 PIECE 34 | 5/9 Secondary reference General Electric Company |
| 5573628-035 | 5/9 Secondary reference General Electric Company |
| PL-817D477 | D/9 Drawing number reference only General Electric Company |
NSN 2825-01-218-1664 is a Ring,butt,turbine, classified under FSC 2825, Steam Turbines and Components. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 2825-01-218-1665, 2825-01-218-7477. Verify interchangeability with system specifications before substitution.
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.