The Sleeve,valve Blower, cataloged under National Stock Number 2825-00-950-1897, is classified within Federal Supply Class 2825 (Steam Turbines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Steward Machine Co Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2825-00-950-1897 |
| Primary Part Number | 591-609 |
| Item Name | Sleeve,valve Blower |
| FSC / FSG | 2825 / 28 — Steam Turbines and Components |
| Manufacturer | Steward Machine Co Inc |
| Status | ACTIVE |
| General Characteristics Item Description | STAINLESS STEEL QQ-S-763;1.062 IN. LONG;OD 1.760 IN.;ONE END ID 1.345 IN. NOMINAL;OTHER END ID 0.625 IN. NOMINAL IN |
| 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 |
|---|---|
| 591-609 PRIMARY | Steward Machine Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 60-591PC609 | 5/9 Secondary reference Hardie-Tynes Co., Inc. |
| 591-609 | 5/9 Secondary reference Ships Parts Inc |
| 591-609 | 5/9 Secondary reference Euramco Safety Inc |
| CS9501897 | 5/9 Secondary reference Calabrese & Sons, Inc. |
| 591-609 | 5/9 Secondary reference Hardie-Tynes Co., Inc. |
| 60-773PC609 | 5/9 Secondary reference Hardie-Tynes Co., Inc. |
NSN 2825-00-950-1897 is a Sleeve,valve Blower, manufactured by Steward Machine Co Inc, classified under FSC 2825, Steam Turbines and Components. Status: active.
NSN 2825-00-950-1897 has 1 manufacturer part number on file: 591-609 (Steward Machine Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 2835-00-969-0031. Verify interchangeability with system specifications before substitution.
Key specifications for 591-609: General Characteristics Item Description: STAINLESS STEEL QQ-S-763;1.062 IN. LONG;OD 1.760 IN.;ONE END ID 1.345 IN. NOMINAL;OTHER END ID 0.625 IN. NOMINAL IN. 1 specification is 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.