The Dehydrator Unit,nonreactivating, cataloged under National Stock Number 4440-01-253-7709, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Altec Air, Llc Dba Altec Llc. Government technical data includes 1 specification, 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 | 4440-01-253-7709 |
| Primary Part Number | P-550-3 |
| Item Name | Dehydrator Unit,nonreactivating |
| FSC / FSG | 4440 / 44 — Driers, Dehydrators, and Anhydrators |
| Manufacturer | Altec Air, Llc Dba Altec Llc |
| Status | ACTIVE |
| FSC Application Data | DRIERS, DEHYDRATORS EQUIPMENT |
| 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 |
|---|---|
| P-550-3 PRIMARY | Altec Air, Llc Dba Altec Llc (USA) |
NSN 4440-01-253-7709 is a Dehydrator Unit,nonreactivating, manufactured by Altec Air, Llc Dba Altec Llc, classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
NSN 4440-01-253-7709 has 1 manufacturer part number on file: P-550-3 (Altec Air, Llc Dba Altec Llc).
Key specifications for P-550-3: FSC Application Data: DRIERS, DEHYDRATORS EQUIPMENT; Special Features: UNIT USED TO DELIVER 500 SCFD OF DRY AIR PRESSURE OF 0 TO 15 PSIG. MAX.OF 750 SCFD UNDER EMERGENCY CONDITIONS: MOUNTING DESIGN FLOOR, WALL RELAY RACK; EMPLOYS PRINCIPLE OF COMPRESSION AND CHEMICAL ADSORPTION; OPERATION AUTOMATIC; 115V, SINGLE-PHASE, 60 HERTZ, 3.5 AMPS; SIZE 19 IN. W., 10 3/4 IN. DP26 IN. H; WEIGHT 65 LBS.; AIR HUMIDITYUNDER 2 PCT. AT 70 DEG. F.; DEW POINT -40 DEG. F.; OPERATING TEMP. MAX 120 DEG. F. MIN 35 DEG. F. V. 1 specification is 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.