The Dehydrator Unit,nonreactivating, cataloged under National Stock Number 4440-01-290-5029, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4440-01-290-5029 |
| Primary Part Number | 322AS159-1 |
| Item Name | Dehydrator Unit,nonreactivating |
| FSC / FSG | 4440 / 44 — Driers, Dehydrators, and Anhydrators |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Unit Package Type | BOX |
| Unit Package Quantity | 1 |
| Usage Design | TO DRY HIGH-PRESSURE AIR,OXYGEN,HYDROGEN,HELIUM,OR NITROGEN DURING GROUND SERVICING OF AIRCRAFT OR MISSILE GAS SYSTEMS |
| 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 |
|---|---|
| AQW INC. 322AS159-1 MB-15850-S | Aqw Inc (USA) |
| 322AS159-1 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 322AS159-1 | Aqw Inc (USA) |
| IAW DRAWING 322AS159 REV K 1997 | Aqw Inc (USA) |
| Reference | Meaning |
|---|---|
| HPD-1 AND C-1-SG | 5/9 Secondary reference U.S. Government activity |
| 322AS159-1 | 5/9 Secondary reference U.S. Government activity |
| AQW INC. 63937 P/N MB-1-5850 | 5/9 Secondary reference Aqw Inc |
| 322AS159 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 4440PL1032473 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 322AS159-1 | 5/9 Secondary reference Arvinmeritor Inc |
| MB1-5850-S AND MA-1 | 5/9 Secondary reference U.S. Government activity |
| MB1-5850 AND MA-1 | 5/9 Secondary reference U.S. Government activity |
NSN 4440-01-290-5029 is a Dehydrator Unit,nonreactivating, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
NSN 4440-01-290-5029 has 4 manufacturer part numbers on file: AQW INC. 322AS159-1 MB-15850-S (Aqw Inc), 322AS159-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 322AS159-1 (Aqw Inc), IAW DRAWING 322AS159 REV K 1997 (Aqw Inc).
Key specifications for 322AS159-1: Unit Package Type: BOX; Unit Package Quantity: 1; Usage Design: TO DRY HIGH-PRESSURE AIR,OXYGEN,HYDROGEN,HELIUM,OR NITROGEN DURING GROUND SERVICING OF AIRCRAFT OR MISSILE GAS SYSTEMS. 3 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.