The Heater,water,gas, cataloged under National Stock Number 4520-01-591-4661, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-591-4661 |
| Item Name | Heater,water,gas |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| Capacity | 4.0 GALLONS TANK |
| Supplementary Features | FUELED WITH CONVENIENT 16.4 OZ DISPOSABLE PROPANE CYLINDERS; WATERPROOF BATTERY CASE WITH ON/OFF SWITCH HOLDS 4 D CELL BATTERIES; PUSH BUTTON IGNITION OZ |
| Gas for Which Designed | PROPANE |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 6125 | 3/9 Design control — primary reference Zodi Outback Gear L.c. Div Hazmatshower.com |
NSN 4520-01-591-4661 is a Heater,water,gas, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
Key specifications for 4520-01-591-4661: Capacity: 4.0 GALLONS TANK; Supplementary Features: FUELED WITH CONVENIENT 16.4 OZ DISPOSABLE PROPANE CYLINDERS; WATERPROOF BATTERY CASE WITH ON/OFF SWITCH HOLDS 4 D CELL BATTERIES; PUSH BUTTON IGNITION OZ; Gas for Which Designed: PROPANE; Special Features: HEATS OVER 60 GALLONS OF HOT WATER BETWEEN BATTERY AND PROPANE REFILLS, ADJUSTABLE TEMPERATURE; EXTRA LONG 8 FT. FLEXIBLE SHOWER HOSE WITH SHOWERHEAD;DOUBLE BURNER DESIGN FOR HIGH-OUTPUT PERFORMANCE; 6 VOLT PUMP WITH DEBRIS SCREEN FT. 4 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.