The Desiccant Container,dehumidifier, cataloged under National Stock Number 4440-01-398-2209, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4440-01-398-2209 |
| Item Name | Desiccant Container,dehumidifier |
| FSC / FSG | 4440 / 44 — Driers, Dehydrators, and Anhydrators |
| 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 |
| Reference | Meaning |
|---|---|
| 35401 | 3/9 Design control — primary reference Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies |
| 35401 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4440-01-398-2209 is a Desiccant Container,dehumidifier, classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 7920-01-487-7531, 5130-01-551-7551. Verify interchangeability with system specifications before substitution.
Key specifications for 4440-01-398-2209: End Item Identification: DIELECTRIC COMMUNICATIONS, DUAL OUTLET WAVEGUIDE PRESSURIZATION UNIT, UD-6. 0 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.