The Dehydrator Unit,nonreactivating, cataloged under National Stock Number 4440-01-508-9398, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Howell Laboratories Inc Dba Howell Laboratories Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4440-01-508-9398 |
| Primary Part Number | 7440-G501 |
| Item Name | Dehydrator Unit,nonreactivating |
| FSC / FSG | 4440 / 44 — Driers, Dehydrators, and Anhydrators |
| Manufacturer | Howell Laboratories Inc Dba Howell Laboratories Inc |
| Status | ACTIVE |
| Body Overall Height | 40.000 INCHES NOMINAL IN |
| Body Overall Width | 58.000 INCHES NOMINAL IN |
| 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 |
|---|---|
| 7440-G501 PRIMARY | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
NSN 4440-01-508-9398 is a Dehydrator Unit,nonreactivating, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
NSN 4440-01-508-9398 has 1 manufacturer part number on file: 7440-G501 (Howell Laboratories Inc Dba Howell Laboratories Inc).
Key specifications for 7440-G501: Special Features: :INLET AIR: UP TO 400 SCFM AT 80-135 PSIG, 50-125 F; OUTLET AIR: 80-125 PSIG; CHILLED WATER: NONE REQIRED; ELECTRICAL: BASE UNIT HAS NONE, DEPTH OF UNIT IS 26 IN., WGHT: 770 LBS; MODEL NUMBER MARK 1; ITEM AKA: DEHYDRATOR MODULE LBS; Body Overall Height: 40.000 INCHES NOMINAL IN; Body Overall Width: 58.000 INCHES NOMINAL IN. 2 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.