The Seal Ring Assembly,labyrinth, cataloged under National Stock Number 2825-01-288-3717, is classified within Federal Supply Class 2825 (Steam Turbines and Components) of the Engines, Turbines, and Components group. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Seal Ring Assembly,labyrinth |
| FSC / FSG | 2825 — Steam Turbines and Components (FSG 28) |
| Parameter | Value |
|---|---|
| NSN | 2825-01-288-3717 |
| Item Name | Seal Ring Assembly,labyrinth |
| 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 |
|---|---|
| 576E404 | D/9 Drawing number reference only General Electric Company |
| 429B138-3 | 3/9 Design control — primary reference General Electric Co Naval and Drive Turbine Systems Dept |
| 429B138 PIECE 3 | 5/9 Secondary reference General Electric Company |
| 420B139 PC.3 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
| 576E404 PC 2 | 5/9 Secondary reference General Electric Company |
| B-3216737 | 5/9 Secondary reference U.S. Government activity |
NSN 2825-01-288-3717 is a Seal Ring Assembly,labyrinth, classified under FSC 2825, Steam Turbines and Components. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 2825-01-288-3718, 2825-01-288-3719, 2825-01-288-3720. 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.