The Dehydrator Unit,nonreactivating, cataloged under National Stock Number 4440-01-649-4315, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Drytech Inc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Dehydrator Unit,nonreactivating |
| FSC / FSG | 4440 — Driers, Dehydrators, and Anhydrators (FSG 44) |
| Manufacturers | The Boeing Company Div Defense (CAGE 76301); Drytech Inc (CAGE 0S180) |
| Parameter | Value |
|---|---|
| NSN | 4440-01-649-4315 |
| Primary Part Number | 1DT4000 |
| Item Name | Dehydrator Unit,nonreactivating |
| FSC / FSG | 4440 / 44 — Driers, Dehydrators, and Anhydrators |
| Manufacturer | Drytech Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 74B830910-101 | The Boeing Company Div Defense (USA) |
| 74B830910 | The Boeing Company Div Defense (USA) |
| 1DT4000 PRIMARY | Drytech Inc (USA) |
| Reference | Meaning |
|---|---|
| 5119-002001 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4440-01-649-4315 is a Dehydrator Unit,nonreactivating, manufactured by Drytech Inc, classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
NSN 4440-01-649-4315 has 3 manufacturer part numbers on file: 74B830910-101 (The Boeing Company Div Defense), 74B830910 (The Boeing Company Div Defense), 1DT4000 (Drytech Inc).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4440-01-649-4315 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.