The Cartridge,dehydrator, cataloged under National Stock Number 4440-01-539-0794, 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 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Cartridge,dehydrator |
| FSC / FSG | 4440 — Driers, Dehydrators, and Anhydrators (FSG 44) |
| Manufacturers | Drytech Inc (CAGE 0S180); Lockheed Martin Corporation (CAGE 04939) |
| Parameter | Value |
|---|---|
| NSN | 4440-01-539-0794 |
| Primary Part Number | 1DT58020-002 |
| Item Name | Cartridge,dehydrator |
| FSC / FSG | 4440 / 44 — Driers, Dehydrators, and Anhydrators |
| Manufacturer | Drytech Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 1DT58020-002 PRIMARY | Drytech Inc (USA) |
| 1DT58020-003 | Lockheed Martin Corporation (USA) |
| 77422185-002 PRIMARY | Lockheed Martin Corporation (USA) |
| 1DT58020 | Drytech Inc (USA) |
| Reference | Meaning |
|---|---|
| 77422185-003 | 5/1 Secondary reference Lockheed Martin Corporation |
| 4440PL1657794 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 4440PL1768592 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 4440-01-539-0794 is a Cartridge,dehydrator, manufactured by Drytech Inc, classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
NSN 4440-01-539-0794 has 4 manufacturer part numbers on file: 1DT58020-002 (Drytech Inc), 1DT58020-003 (Lockheed Martin Corporation), 77422185-002 (Lockheed Martin Corporation), 1DT58020 (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.
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.