The Seal Ring Assembly,labyrinth, cataloged under National Stock Number 2825-01-482-8644, is classified within Federal Supply Class 2825 (Steam Turbines and Components) of the Engines, Turbines, and Components group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2825-01-482-8644 |
| Item Name | Seal Ring Assembly,labyrinth |
| FSC / FSG | 2825 / 28 — Steam Turbines and Components |
| Status | ACTIVE |
| Outside Diameter | 16.750 INCHES NOMINAL16.750 INCHES NOMINAL IN |
| Height | 1.188 INCHES NOMINAL1.188 INCHES NOMINAL IN |
| Material | COPPER ALLOY CORE |
| Material | COPPER ALLOY OVERALL |
| 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 |
|---|---|
| 6511E64-002 | 3/2 Design control — primary reference U.S. Government activity |
| 6511E64 FIND NO 2 | 5/2 Secondary reference U.S. Government activity |
| 6511E64 | D/9 Drawing number reference only U.S. Government activity |
NSN 2825-01-482-8644 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): 2835-01-482-8645. Verify interchangeability with system specifications before substitution.
Key specifications for 2825-01-482-8644: Outside Diameter: 16.750 INCHES NOMINAL16.750 INCHES NOMINAL IN; Height: 1.188 INCHES NOMINAL1.188 INCHES NOMINAL IN; Special Features: ENGINE SECTION LOCATION: TURBINEENGINE SECTION LOCATION: TURBINE; Part Name Assigned by Controlling Agency: GLAND SEAL RING MODIFICATIONSGLAND SEAL RING MODIFICATIONS. 4 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.