The Heater,space, cataloged under National Stock Number 4520-01-514-8424, 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 Heatercraft Marine Products, Inc.. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-514-8424 |
| Primary Part Number | 317H4B-24 |
| Item Name | Heater,space |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Heatercraft Marine Products, Inc. |
| Status | ACTIVE |
| Heat Delivery Rate | 40000.0 BRITISH THERMAL UNIT |
| Height | 6.550 INCHES NOMINAL IN |
| Depth | 9.400 INCHES NOMINAL IN |
| Width | 15.950 INCHES NOMINAL IN |
| Fuel Feed Method | EXTERNAL PUMP |
| Heating Element Type | HOT WATER COIL |
| 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 |
|---|---|
| 317H4B-24 PRIMARY | Heatercraft Marine Products, Inc. (USA) |
NSN 4520-01-514-8424 is a Heater,space, manufactured by Heatercraft Marine Products, Inc., classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-514-8424 has 1 manufacturer part number on file: 317H4B-24 (Heatercraft Marine Products, Inc.).
Key specifications for 317H4B-24: Heat Delivery Rate: 40000.0 BRITISH THERMAL UNIT; Height: 6.550 INCHES NOMINAL IN; Special Features: HEATER KIT COMES WITH (1) 4 OUTLET HEATER UNIT WITH MOUNTING BRACKETS;(1) 4 POSITION SWITCH WITH MOUNTING PLATE AND 9 FT HARNESS;(4) H504B EURO VENTS 3 IN;(24 FT) 3 IN VENT HOSE;HAS A 24 VOLT CONNECTION TO OPERATE 3 SPEED FAN;OPERATES IN A MANNER VERY SIMLAR TO A CAR'S HEATING SYSTEM IN; Depth: 9.400 INCHES NOMINAL IN. 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.