The Heater,water,steam-Hot Water Hea, cataloged under National Stock Number 4520-01-371-2741, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Modine Manufacturing Co. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-371-2741 |
| Primary Part Number | HC47SB01SA |
| Item Name | Heater,water,steam-Hot Water Hea |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Modine Manufacturing Co |
| Status | ACTIVE |
| Water Outlet Connection Thread Size and Series/type Designator | 1.250-11-1/2 NPT |
| Water Outlet Connection Quantity | 1 |
| Mounting Position | HORIZONTAL |
| Water Inlet Connection Quantity | 2 |
| Operating Pressure | 2.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM HEATING COIL LBS |
| Water Inlet Connection Thread Size and Series/type Designator | 1.250-11-1/2 NPT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| HC47SB01SA PRIMARY | Modine Manufacturing Co (USA) |
| Reference | Meaning |
|---|---|
| H175MA | 5/9 Secondary reference Dunham-Bush, Inc. Dba Dunham-Bush Inc Commercial & Industrial |
NSN 4520-01-371-2741 is a Heater,water,steam-Hot Water Hea, manufactured by Modine Manufacturing Co, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-371-2741 has 1 manufacturer part number on file: HC47SB01SA (Modine Manufacturing Co).
Key specifications for HC47SB01SA: Water Outlet Connection Thread Size and Series/type Designator: 1.250-11-1/2 NPT; Water Outlet Connection Quantity: 1; Mounting Position: HORIZONTAL; Water Inlet Connection Quantity: 2. 6 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.