The Ring,piston, cataloged under National Stock Number 2825-00-528-5804, is classified within Federal Supply Class 2825 (Steam Turbines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Acme Products & Engineering Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 15 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2825-00-528-5804 |
| Primary Part Number | 63462-AP |
| Item Name | Ring,piston |
| FSC / FSG | 2825 / 28 — Steam Turbines and Components |
| Manufacturer | Acme Products & Engineering Inc |
| Status | ACTIVE |
| FSC Application Data | TURBINE,STEAM |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Joint Style | DIAGONAL JOINT |
| Radial Wall Thickness | 0.1850 INCHES MINIMUM AND 0.1860 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 5.000 INCHES IN |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 63462-AP PRIMARY | Acme Products & Engineering Inc (USA) |
| Reference | Meaning |
|---|---|
| LA63462 | 5/9 Secondary reference U.S. Government activity |
| 08554C00 | 5/9 Secondary reference Kaydon Ring & Seal Inc Dba Skf Precision Technologies |
| LH63611PC8-25 | 5/9 Secondary reference U.S. Government activity |
| 63462-001 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 63462-001 | 5/9 Secondary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| 08554B00 | 5/9 Secondary reference Kaydon Ring & Seal Inc Dba Skf Precision Technologies |
| 63462 | 5/9 Secondary reference U.S. Government activity |
| LA-63462 | 5/9 Secondary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| LA63462 | 5/9 Secondary reference U.S. Government activity |
| LH63611PC8-25 | 5/9 Secondary reference U.S. Government activity |
| 12301PC8-11 | 5/9 Secondary reference U.S. Government activity |
| 63462 | 5/9 Secondary reference U.S. Government activity |
| 3211903 | 5/9 Secondary reference U.S. Government activity |
| 63462 | 5/9 Secondary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| LA63462 | 5/9 Secondary reference Calabrese & Sons, Inc. |
NSN 2825-00-528-5804 is a Ring,piston, manufactured by Acme Products & Engineering Inc, classified under FSC 2825, Steam Turbines and Components. Status: active.
NSN 2825-00-528-5804 has 1 manufacturer part number on file: 63462-AP (Acme Products & Engineering Inc).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-624-4073. Verify interchangeability with system specifications before substitution.
Key specifications for 63462-AP: FSC Application Data: TURBINE,STEAM; Overall Width: 0.1950 INCHES MINIMUM AND 0.2050 INCHES MAXIMUM IN; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE; Joint Style: DIAGONAL 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.