The Cartridge,dehydrator, cataloged under National Stock Number 4440-00-476-0378, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Raytheon Company. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4440-00-476-0378 |
| Primary Part Number | 381MS090P001 |
| Item Name | Cartridge,dehydrator |
| FSC / FSG | 4440 / 44 — Driers, Dehydrators, and Anhydrators |
| Manufacturer | Raytheon Company |
| Status | ACTIVE |
| FSC Application Data | DRIERS AND DEHYDRATORS |
| Body Overall Length | 8.625 INCHES NOMINAL IN |
| Capacity | 63.534 CUBIC INCHES |
| Desiccant Type | SILICA GEL |
| Material | ALUMINUM OR PLASTIC BODY |
| Dispersion Tube | INCLUDED |
| Body Overall Diameter | 3.313 INCHES 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 |
|---|---|
| 381MS090P001 | Raytheon Company (USA) |
| 381MS090P001 | Raytheon Company Dba Raytheon Co (USA) |
| 381MS090P001 | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 381MS090P001 | 5/9 Secondary reference Raytheon Company Div Corp |
| DP1050-200 | 5/9 Secondary reference Howden Fluid Systems |
| DP1050-200 | 3/9 Design control — primary reference Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. |
NSN 4440-00-476-0378 is a Cartridge,dehydrator, manufactured by Raytheon Company, classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
NSN 4440-00-476-0378 has 3 manufacturer part numbers on file: 381MS090P001 (Raytheon Company), 381MS090P001 (Raytheon Company Dba Raytheon Co), 381MS090P001 (Raytheon Company Dba Raytheon Co).
Key specifications for 381MS090P001: FSC Application Data: DRIERS AND DEHYDRATORS; Body Overall Length: 8.625 INCHES NOMINAL IN; Capacity: 63.534 CUBIC INCHES; Desiccant Type: SILICA GEL. 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.