The Dehydrator Unit,nonreactivating, cataloged under National Stock Number 4440-01-502-9798, 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 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4440-01-502-9798 |
| Primary Part Number | 7053-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 Length | 46.000 INCHES NOMINAL IN |
| Body Overall Height | 10.000 INCHES NOMINAL IN |
| Body Overall Width | 32.000 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 |
|---|---|
| 7053 REV A | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| 7053-G501 PRIMARY | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
NSN 4440-01-502-9798 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 4440-01-502-9798 has 2 manufacturer part numbers on file: 7053 REV A (Howell Laboratories Inc Dba Howell Laboratories Inc), 7053-G501 (Howell Laboratories Inc Dba Howell Laboratories Inc).
Key specifications for 7053-G501: Body Overall Length: 46.000 INCHES NOMINAL IN; Special Features: DESIGNED TO PROVIDE CLEAN, DRY AIR AT MEDIUM PRESSURE, 450 PSIG; MOISTURE IS REMOVED BY PASSING INCOMING WET AIR THRU A MEMBRANE MODULE; PARTICULATE MATTER AND AEROSOLS ARE REMOVED BY A PARTICULATE FILTER AND A COALESCING FILTER; BUILT IN ACCORDANCE W/LPD 17 SPEC 6259K; WELDED IN ACCORDANCE W/S9074-AR-GIB-010/278; QUALIFED TO MIL-S-901C, HI IMPACT SHOCK,GRADE A, MIL-STD-167-1, VIBRATION SHIPBOARD; ELECTRONIC COMPONENTS IN HUMIDITY MONITOR ARE EMI-QUALIFIED TO MIL-STD-461 & SUBJECTED TO ENVIRONMENTAL STRESS SCREENING; OUTLET CAPACITY: 0-10 SCFM; INLET AIR CONDITIONS(DEFINED BY SPEC): 450 PSIG 55 DEG F TO 125 DEG F, MAX DEWPOINT 48.2DEG F @ 450 PSIG; OUTLET AIR CONDITIONS: MAX DEWPOINT OF 14.9 DEG F AT PRESSURE, PRESSURE NOT MORE THAN 5 PSIG BELOW INLET; ELECT REQUIREMENTS: 115 VAC, 60 HZ., 1 PHASE, 500 W; WEIGHT: 160 LBS VAC; Body Overall Height: 10.000 INCHES NOMINAL IN; Body Overall Width: 32.000 INCHES NOMINAL IN. 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.