The Heater,water,liquid Fuel, cataloged under National Stock Number 4520-00-232-7446, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4520-00-232-7446 |
| Item Name | Heater,water,liquid Fuel |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | HIGH PRESSURE,ATOMIZING BURNER; DESIGNED FOR FUEL OIL,GRADE NO. DF-A,PER FED SPEC VV-F-800; HEATING CAPACITY DATA,MIN 121 GAL WATER HEATED PER HR,140 DEG F TEMP RISE PER HR; STORAGE TANK DATA,DESIGNED FOR VERTICAL POS,NOM 22 GAL CAPACITY,STEEL,PROTECTIVE FINISH DATA,ZINC-COATED EXTERIOR FINISH,ZINC-COATED INTERIOR FINISH; AUTOMATICALLY CONTROLLED; NOT RATED FOR MAX WP; WATER CONNECTIONS DATA,INLET,1,1-1/2 IN.-11-1/2 NPT,OUTLET,1,1-1/2 IN.-11-1/2 NPT; DESIGNED FOR 6 IN. FLUE PIPE; INSULATED; O/A DIM.,A/A; ELEC DATA,AC,115V,60 CYCLES,SINGLE PHASE; NOT RATED FOR WATTAGE; ADDITIONAL EQUIPMENT CAP,WEATHER 1,ELBOW,FLUE PIPE,90 DEG 2,ELECTRODES,IGNITION /SPARE SET/ W/LEADS 1,PIPE,FLUE,2 FT LG 7,REGULATOR,DRAFT 1,RELIEF VALVE,COMBINATION PRESSURE AND TEMPERATURE 1,STORM COLLAR,FLUE PIPE 1; SPECIAL FEATURES,APPROVED FOR INSULATION ON COMBUSTIBLE FLOORS,ELECTROMATIC INTERFERENCE CONTROL REQUIRED,FUNGUS RESISTANCE REQUIRED,MIN 127.5 STD WP V |
| Departure From Cited Designator | HEATING CAPACITY DATA,STORAGE TANK NOM 22 GAL CAPACITY,WATER CONNECTIONS DATA INLET 1-1/2 IN.-11-1/2 NPT,WATER CONNECTIONS DATA OUTLET 1-1/2 IN.-11-1/2 NPT,ADDITIONAL EQUIPMENT,SPECIAL FEATURES IN |
| Nondefinitive Spec/std Data | B STYLE |
| Nondefinitive Spec/std Data | V TYPE |
| Nondefinitive Spec/std Data | 22-GAL NOM STORAGE CAPACITY SIZE |
| 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 |
|---|---|
| WH017G | 3/9 Design control — primary reference Aldrico, Inc. Dba Aldrich Company |
| MILH16451 | 4/1 Identification reference U.S. Government activity |
NSN 4520-00-232-7446 is a Heater,water,liquid Fuel, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
Key specifications for 4520-00-232-7446: General Characteristics Item Description: HIGH PRESSURE,ATOMIZING BURNER; DESIGNED FOR FUEL OIL,GRADE NO. DF-A,PER FED SPEC VV-F-800; HEATING CAPACITY DATA,MIN 121 GAL WATER HEATED PER HR,140 DEG F TEMP RISE PER HR; STORAGE TANK DATA,DESIGNED FOR VERTICAL POS,NOM 22 GAL CAPACITY,STEEL,PROTECTIVE FINISH DATA,ZINC-COATED EXTERIOR FINISH,ZINC-COATED INTERIOR FINISH; AUTOMATICALLY CONTROLLED; NOT RATED FOR MAX WP; WATER CONNECTIONS DATA,INLET,1,1-1/2 IN.-11-1/2 NPT,OUTLET,1,1-1/2 IN.-11-1/2 NPT; DESIGNED FOR 6 IN. FLUE PIPE; INSULATED; O/A DIM.,A/A; ELEC DATA,AC,115V,60 CYCLES,SINGLE PHASE; NOT RATED FOR WATTAGE; ADDITIONAL EQUIPMENT CAP,WEATHER 1,ELBOW,FLUE PIPE,90 DEG 2,ELECTRODES,IGNITION /SPARE SET/ W/LEADS 1,PIPE,FLUE,2 FT LG 7,REGULATOR,DRAFT 1,RELIEF VALVE,COMBINATION PRESSURE AND TEMPERATURE 1,STORM COLLAR,FLUE PIPE 1; SPECIAL FEATURES,APPROVED FOR INSULATION ON COMBUSTIBLE FLOORS,ELECTROMATIC INTERFERENCE CONTROL REQUIRED,FUNGUS RESISTANCE REQUIRED,MIN 127.5 STD WP V; Departure From Cited Designator: HEATING CAPACITY DATA,STORAGE TANK NOM 22 GAL CAPACITY,WATER CONNECTIONS DATA INLET 1-1/2 IN.-11-1/2 NPT,WATER CONNECTIONS DATA OUTLET 1-1/2 IN.-11-1/2 NPT,ADDITIONAL EQUIPMENT,SPECIAL FEATURES IN; Nondefinitive Spec/std Data: B STYLE; Nondefinitive Spec/std Data: V TYPE. 5 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.