The Ring,piston, cataloged under National Stock Number 2825-00-972-8880, is classified within Federal Supply Class 2825 (Steam Turbines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is General Electric Company. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2825-00-972-8880 |
| Primary Part Number | 632A933PC7 |
| Item Name | Ring,piston |
| FSC / FSG | 2825 / 28 — Steam Turbines and Components |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Joint Style | STEP JOINT |
| Radial Wall Thickness | 0.3020 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 9.000 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 |
| Part Number | Manufacturer |
|---|---|
| 632A933PC7 | General Electric Company (USA) |
| 632A933PC7 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| CS9728880 | 5/9 Secondary reference Calabrese & Sons, Inc. |
| 632A933PIECE7 | 3/9 Design control — primary reference General Electric Co Naval and Drive Turbine Systems Dept |
| 632A933 | D/9 Drawing number reference only General Electric Company |
NSN 2825-00-972-8880 is a Ring,piston, manufactured by General Electric Company, classified under FSC 2825, Steam Turbines and Components. Status: active.
NSN 2825-00-972-8880 has 2 manufacturer part numbers on file: 632A933PC7 (General Electric Company), 632A933PC7 (General Electric Company).
1 possible match (shared part number, not a government interchangeability claim): 4310-01-218-1839. Verify interchangeability with system specifications before substitution.
Key specifications for 632A933PC7: Overall Width: 0.2490 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE; Joint Style: STEP JOINT; Radial Wall Thickness: 0.3020 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN. 6 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.