The Evaporator Assembly, cataloged under National Stock Number 4440-01-178-8506, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4440-01-178-8506 |
| Item Name | Evaporator Assembly |
| FSC / FSG | 4440 / 44 — Driers, Dehydrators, and Anhydrators |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF PARTS OF DEMISTER,STAGE 1; DEMISTER,STAGE 2; ROD,DEMISTER HOUSING; GASKETS; TUBING; GLASS ANNULAR EDGE; WASHERS,NUTS; CAPSCREWS; SLEEVE,VENT; 75.000 IN. H; 54.375 IN. W IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 633-E-8316 | 5/9 Secondary reference Aqua-Chem, Inc. |
| 633-816 | 5/9 Secondary reference Aqua-Chem, Inc. |
| 633-08316-000 | 3/9 Design control — primary reference Aqua-Chem, Inc. |
| 633-08316-000 | C/1 Advisory reference — outside the item-of-supply concept Aqua-Chem, Inc. Dba Aqua-Chem Inc |
| 633-8316 | C/1 Advisory reference — outside the item-of-supply concept Aqua-Chem, Inc. |
| 633-00816-000 | 5/9 Secondary reference Aqua-Chem, Inc. |
NSN 4440-01-178-8506 is a Evaporator Assembly, classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 4440-01-178-8509, 4440-01-178-8510, 4440-01-178-8512. Verify interchangeability with system specifications before substitution.
Key specifications for 4440-01-178-8506: General Characteristics Item Description: CONSISTS OF PARTS OF DEMISTER,STAGE 1; DEMISTER,STAGE 2; ROD,DEMISTER HOUSING; GASKETS; TUBING; GLASS ANNULAR EDGE; WASHERS,NUTS; CAPSCREWS; SLEEVE,VENT; 75.000 IN. H; 54.375 IN. W IN; End Item Identification: AQUA-CHEM INC DISTILLING PLANT MODEL S-167-FL-2. 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.