The Heater,water,liquid Fuel, cataloged under National Stock Number 4520-01-237-3719, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-237-3719 |
| Item Name | Heater,water,liquid Fuel |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | SKID MTD;PORTABLE;CAPACITY 9 GALLONS OF WATER PER MINUTE WITH A TEMPERATURE RISE OF 100 DEG F;OPERATES ON 3 PHASE;60 HERTZ;208 V ELECTRICAL POWER SOURCE;BURNER OPERATES ON DIESEL (PRIMARY FUEL) AND GASOLINE (SECONDARY FUEL);WATER LEVEL CONTROLS;OPERATING CONTROL OUTLET WATER TEMPERATURE IS MAINTAINED BETWEEN 175 AND 210 DEG F;LIMIT CONTROL OUTLET WATER TEMPERATURE IS MAINTAINED BETWEEN 180 AND 194 DEG F;FLAME SAFEGUARD OPERATES BETWEEN 125 DEG F AND MINUS 20 DEG F;52.000 IN. O/A LG;27.000 IN. O/A W;47.000 IN. O/A H V |
| Departure From Cited Document | AS MODIFIED BY ALTERED DRAWING |
| 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 |
|---|---|
| MIL-H-44086 | 4/1 Identification reference U.S. Government activity |
| 6-1-9912 ALTERED | 3/1 Design control — primary reference U.S. Government activity |
NSN 4520-01-237-3719 is a Heater,water,liquid Fuel, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
Key specifications for 4520-01-237-3719: General Characteristics Item Description: SKID MTD;PORTABLE;CAPACITY 9 GALLONS OF WATER PER MINUTE WITH A TEMPERATURE RISE OF 100 DEG F;OPERATES ON 3 PHASE;60 HERTZ;208 V ELECTRICAL POWER SOURCE;BURNER OPERATES ON DIESEL (PRIMARY FUEL) AND GASOLINE (SECONDARY FUEL);WATER LEVEL CONTROLS;OPERATING CONTROL OUTLET WATER TEMPERATURE IS MAINTAINED BETWEEN 175 AND 210 DEG F;LIMIT CONTROL OUTLET WATER TEMPERATURE IS MAINTAINED BETWEEN 180 AND 194 DEG F;FLAME SAFEGUARD OPERATES BETWEEN 125 DEG F AND MINUS 20 DEG F;52.000 IN. O/A LG;27.000 IN. O/A W;47.000 IN. O/A H V; Departure From Cited Document: AS MODIFIED BY ALTERED DRAWING; End Item Identification: BATH UNIT,PORTABLE. 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.