The Ring,piston, cataloged under National Stock Number 2825-00-528-6358, is classified within Federal Supply Class 2825 (Steam Turbines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Ametek Inc Schutte and Koerting Div. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 2825-00-528-6358 |
| Primary Part Number | 00S4839V0020 |
| Item Name | Ring,piston |
| FSC / FSG | 2825 / 28 — Steam Turbines and Components |
| Manufacturer | Ametek Inc Schutte and Koerting Div |
| Status | ACTIVE |
| FSC Application Data | TURBINE,STEAM |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Radial Wall Thickness | 0.2360 INCHES MINIMUM AND 0.2560 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 6.875 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 |
|---|---|
| S4839 | Ametek Inc Schutte and Koerting Div (USA) |
| 41A69PC92 | Ametek Inc Schutte and Koerting Div (USA) |
| 41A78PC6 | Ametek Inc Schutte and Koerting Div (USA) |
| 41A69PC6 | Ametek Inc Schutte and Koerting Div (USA) |
| 00S4839V0020 PRIMARY | Ametek Inc Schutte and Koerting Div (USA) |
NSN 2825-00-528-6358 is a Ring,piston, manufactured by Ametek Inc Schutte and Koerting Div, classified under FSC 2825, Steam Turbines and Components. Status: active.
NSN 2825-00-528-6358 has 5 manufacturer part numbers on file: S4839 (Ametek Inc Schutte and Koerting Div), 41A69PC92 (Ametek Inc Schutte and Koerting Div), 41A78PC6 (Ametek Inc Schutte and Koerting Div), 41A69PC6 (Ametek Inc Schutte and Koerting Div), 00S4839V0020 (Ametek Inc Schutte and Koerting Div).
1 possible match (shared part number, not a government interchangeability claim): 5950-00-827-7187. Verify interchangeability with system specifications before substitution.
Key specifications for 00S4839V0020: FSC Application Data: TURBINE,STEAM; Overall Width: 0.3570 INCHES NOMINAL IN; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE; Radial Wall Thickness: 0.2360 INCHES MINIMUM AND 0.2560 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.