The Coupling Head, cataloged under National Stock Number 2825-01-290-7334, 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. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Coupling Head |
| FSC / FSG | 2825 — Steam Turbines and Components (FSG 28) |
| Manufacturers | Steward Machine Co Inc (CAGE 9E328) |
| Parameter | Value |
|---|---|
| NSN | 2825-01-290-7334 |
| Primary Part Number | 899-632 |
| Item Name | Coupling Head |
| FSC / FSG | 2825 / 28 — Steam Turbines and Components |
| Manufacturer | Steward Machine Co Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 60-909 PIECE 632 | Steward Machine Co Inc (USA) |
| 899-632 PRIMARY | Steward Machine Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 60-909 | D/9 Drawing number reference only Hardie-Tynes Co., Inc. |
| 899-632 | 5/9 Secondary reference Hardie-Tynes Co., Inc. |
| 60-909 PIECE 632 | 5/9 Secondary reference Hardie-Tynes Co., Inc. |
| 899-632AP | 5/9 Secondary reference Acme Products & Engineering Inc |
NSN 2825-01-290-7334 is a Coupling Head, manufactured by Steward Machine Co Inc, classified under FSC 2825, Steam Turbines and Components. Status: active.
NSN 2825-01-290-7334 has 2 manufacturer part numbers on file: 60-909 PIECE 632 (Steward Machine Co Inc), 899-632 (Steward Machine Co Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5355-01-390-6526, 5120-01-596-2283. Verify interchangeability with system specifications before substitution.
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.