The Heater,ventilation,duct Type, cataloged under National Stock Number 4520-01-442-2503, 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 Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil. Government technical data includes 10 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 | 4520-01-442-2503 |
| Primary Part Number | 1167-01-B(33) |
| Item Name | Heater,ventilation,duct Type |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil |
| Status | ACTIVE |
| Heat Medium Type | AIR |
| Heat Outlet Quantity | 1 |
| Heat Discharge Outlet Type | STATIONARY |
| Heat Delivery Direction | HORIZONTAL |
| Height | 28.000 INCHES NOMINAL IN |
| Maximum Pressure Limit | 200.0 POUNDS PER SQUARE INCH GAGE LBS |
| Depth | 8.000 INCHES NOMINAL IN |
| Width | 42.000 INCHES NOMINAL IN |
| Heat Directing Device | FIXED LOUVER |
| 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 |
|---|---|
| 1167-01-B(33) PRIMARY | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil (USA) |
NSN 4520-01-442-2503 is a Heater,ventilation,duct Type, manufactured by Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-442-2503 has 1 manufacturer part number on file: 1167-01-B(33) (Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil).
Key specifications for 1167-01-B(33): Heat Medium Type: AIR; Heat Outlet Quantity: 1; Heat Discharge Outlet Type: STATIONARY; Heat Delivery Direction: HORIZONTAL. 10 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.