The Ring,piston, cataloged under National Stock Number 2825-00-271-9033, is classified within Federal Supply Class 2825 (Steam Turbines and Components) of the Engines, Turbines, and Components group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2825-00-271-9033 |
| Item Name | Ring,piston |
| FSC / FSG | 2825 / 28 — Steam Turbines and Components |
| Status | ACTIVE |
| FSC Application Data | PISTON,STEAM TURBINE |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Joint Style | STEP JOINT |
| Radial Wall Thickness | 0.2470 INCHES MINIMUM AND 0.2530 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 8.000 INCHES IN |
| Material | IRON 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 |
|---|---|
| 8401264 | 5/9 Secondary reference General Electric Company |
| 39J958PC3 | 5/9 Secondary reference Westinghouse Electric Corp |
| 8401264 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
| 1388671 | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
| 39J958PC3 | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
| 1388671 | 5/9 Secondary reference U.S. Government activity |
| 39J958PC3 | 5/9 Secondary reference U.S. Government activity |
| 8401264AA-1 | 3/9 Design control — primary reference General Electric Co Naval and Drive Turbine Systems Dept |
| 1388671 | 5/9 Secondary reference Westinghouse Electric Corp |
| WW8453308PC3 | 5/9 Secondary reference General Electric Company |
| 8401264 | 5/9 Secondary reference General Electric Co Switchgear and Control Division of Apparatus Group |
NSN 2825-00-271-9033 is a Ring,piston, classified under FSC 2825, Steam Turbines and Components. Status: active.
Key specifications for 2825-00-271-9033: FSC Application Data: PISTON,STEAM TURBINE; Overall Width: 0.2480 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM IN; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE; Joint Style: STEP JOINT. 7 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.