The Dehydrator Unit,nonreactivating, cataloged under National Stock Number 4440-01-449-4552, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is A P O Holdings Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4440-01-449-4552 |
| Primary Part Number | HG750A |
| Item Name | Dehydrator Unit,nonreactivating |
| FSC / FSG | 4440 / 44 — Driers, Dehydrators, and Anhydrators |
| Manufacturer | A P O Holdings Inc |
| Status | ACTIVE |
| Body Overall Length | 48.000 INCHES NOMINAL IN |
| Body Overall Height | 73.000 INCHES NOMINAL IN |
| Body Overall Width | 36.000 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 |
|---|---|
| HG750A | A P O Holdings Inc (USA) |
| Reference | Meaning |
|---|---|
| HG750A | 3/9 Design control — primary reference Deltech Engineering Lp |
| 42DE5121 | D/9 Drawing number reference only Deltech Engineering Lp |
NSN 4440-01-449-4552 is a Dehydrator Unit,nonreactivating, manufactured by A P O Holdings Inc, classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
NSN 4440-01-449-4552 has 1 manufacturer part number on file: HG750A (A P O Holdings Inc).
Key specifications for HG750A: Body Overall Length: 48.000 INCHES NOMINAL IN; Special Features: REFRIGERATED DRYER FOR COMPRESSED AIR; AIR INLET AND OUTLET 3.00 NPT; INLET AIR FLOW 750SCFM; INLET PRESSURE RANGE 10 - 250 PSIG; HAS AUTOMATIC DRAIN VALVE; Body Overall Height: 73.000 INCHES NOMINAL IN; Body Overall Width: 36.000 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.