The Desiccant Container,dehumidifier, cataloged under National Stock Number 4440-00-347-3973, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4440-00-347-3973 |
| Item Name | Desiccant Container,dehumidifier |
| FSC / FSG | 4440 / 44 — Driers, Dehydrators, and Anhydrators |
| Status | ACTIVE |
| Desiccant Material | SILICA GEL,DEHYDRATED |
| Overall Diameter | 1.062 INCHES NOMINAL IN |
| Material | COPPER CONTAINER |
| Desiccant | INCLUDED |
| 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 |
|---|---|
| 885966-1 | 3/9 Design control — primary reference O'brien Gear Co |
| K885966-1 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
| CS4440-0010 | D/9 Drawing number reference only Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| K7100528REV2 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
NSN 4440-00-347-3973 is a Desiccant Container,dehumidifier, classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5360-00-497-0443. Verify interchangeability with system specifications before substitution.
Key specifications for 4440-00-347-3973: Desiccant Material: SILICA GEL,DEHYDRATED; Overall Diameter: 1.062 INCHES NOMINAL IN; Overall Length: 3.125 INCHES NOMINAL IN; Special Features: BRASS SCREEN OVER FELT PAD AT ONE END BRONZE WOOL AT OPPOSITE END BRASS PLUG AT EACH END. 4 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.