The Distillation Unit,water,steam Op, cataloged under National Stock Number 4620-00-185-0639, is classified within Federal Supply Class 4620 (Water Distillation Equipment, Marine and Industrial) of the Water Purification and Sewage Treatment group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4620-00-185-0639 |
| Item Name | Distillation Unit,water,steam Op |
| FSC / FSG | 4620 / 46 — Water Distillation Equipment, Marine and Industrial |
| Status | ACTIVE |
| Evaporation Surface Type | SUBMERGED TUBE |
| Operating Pressure and Type | 5.0 POUNDS PER SQUARE INCH (PSI) STEAM NOMINAL REQUIRED FIRST EFFECT LBS |
| Operating Pressure and Type | 80.0 POUNDS PER SQUARE INCH (PSI) STEAM NOMINAL REQUIRED AIR EJECTOR LBS |
| Potable Water Capacity | 125.0 GALLONS PER HOUR |
| Tube Removal Location | FRONT |
| Tube Removal Minimum Distance | 5.500 FEET FT |
| Unable to Decode | UNABLE TO DECODE |
| Unable to Decode | UNABLE TO DECODE |
| Evaporation Surface Shape | STRAIGHT |
| Effect Quantity | 2 |
| Shell Quantity | 1 |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY FIRST EFFECT OPERATING STEAM PRESSURE IN PSI,AIR EJECTOR OPERATING STEAM PRESSURE IN PSI,OVERALL LENGTH,WIDTH,HEIGHT |
| 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 |
|---|---|
| 51104S58 | 5/1 Secondary reference U.S. Government activity |
| NYE2090 | 3/9 Design control — primary reference Ecolaire Inc Baldwin-Hamilton Co Div |
NSN 4620-00-185-0639 is a Distillation Unit,water,steam Op, classified under FSC 4620, Water Distillation Equipment, Marine and Industrial. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4620-00-261-9333. Verify interchangeability with system specifications before substitution.
Key specifications for 4620-00-185-0639: Overall Height: 5.677 FEET NOMINAL FT; Evaporation Surface Type: SUBMERGED TUBE; Operating Pressure and Type: 5.0 POUNDS PER SQUARE INCH (PSI) STEAM NOMINAL REQUIRED FIRST EFFECT LBS; Operating Pressure and Type: 80.0 POUNDS PER SQUARE INCH (PSI) STEAM NOMINAL REQUIRED AIR EJECTOR LBS. 12 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.