The Seal Ring Assembly,labyrinth, cataloged under National Stock Number 2825-01-484-6437, is classified within Federal Supply Class 2825 (Steam Turbines and Components) of the Engines, Turbines, and Components group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2825-01-484-6437 |
| Item Name | Seal Ring Assembly,labyrinth |
| FSC / FSG | 2825 / 28 — Steam Turbines and Components |
| Status | ACTIVE |
| Outside Diameter | 19.270 INCHES NOMINAL IN |
| Inside Diameter | 16.080 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 5D87139-001 | 3/2 Design control — primary reference U.S. Government activity |
| 6512E64FN40 | 5/2 Secondary reference U.S. Government activity |
| 5D87139-001 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Curtiss-Wright Emd |
| 6512E64 | D/9 Drawing number reference only U.S. Government activity |
NSN 2825-01-484-6437 is a Seal Ring Assembly,labyrinth, classified under FSC 2825, Steam Turbines and Components. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5365-01-485-1219. Verify interchangeability with system specifications before substitution.
Key specifications for 2825-01-484-6437: Outside Diameter: 19.270 INCHES NOMINAL IN; Inside Diameter: 16.080 INCHES NOMINAL IN; Special Features: MATERIAL THICKNESS 0.864 INCHES NOMINAL VIA 1.000 INCHES; 8 TAPPERED MOUNTING HOLES 0.515 INCHES DIAMETER. IN; Part Name Assigned by Controlling Agency: SEAL RING ASSY LABYRINTH. 2 specifications are 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.
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.