The Dehydrator Unit,nonreactivating, cataloged under National Stock Number 4440-01-523-9980, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Flair Corporation Dba S P X Air Treatment Div Dehydration. 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 | 4440-01-523-9980 |
| Primary Part Number | HMM3-4BF2 |
| Item Name | Dehydrator Unit,nonreactivating |
| FSC / FSG | 4440 / 44 — Driers, Dehydrators, and Anhydrators |
| Manufacturer | Flair Corporation Dba S P X Air Treatment Div Dehydration |
| Status | ACTIVE |
| Body Overall Length | 19.000 INCHES NOMINAL IN |
| Body Overall Width | 8.000 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 |
|---|---|
| HMM3-4BF2 PRIMARY | Flair Corporation Dba S P X Air Treatment Div Dehydration (USA) |
NSN 4440-01-523-9980 is a Dehydrator Unit,nonreactivating, manufactured by Flair Corporation Dba S P X Air Treatment Div Dehydration, classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
NSN 4440-01-523-9980 has 1 manufacturer part number on file: HMM3-4BF2 (Flair Corporation Dba S P X Air Treatment Div Dehydration).
Key specifications for HMM3-4BF2: Body Overall Length: 19.000 INCHES NOMINAL IN; Special Features: MODULAR MEMBRANE AIR COMPRESSED DRYER; 7.84 SCFM INLET FLOW CAPACITY AT PLUS 40 DEG. F; 3.27 SCFM INLET FLOW CAPACITY AT MINUS 40 DEG. F; BSP INLET/OUTLET THREAD CONNECTION; DUAL PRE-FILTER; GRADE 7 FOLLOWED BY A GRADE 3 FILTER MODUARLY CONNECTED TO THE MEMBRANE DRYER; Body Overall Width: 8.000 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.