The Heater,duct Type,portable, cataloged under National Stock Number 4520-00-620-4055, is classified within Federal Supply Class 4520 (No Item Name Available) of the Plumbing, Heating, and Waste Disposal group. The primary manufacturer of record is Drs Environmental Systems Inc. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4520-00-620-4055 |
| Primary Part Number | BT400-10 |
| Item Name | Heater,duct Type,portable |
| FSC / FSG | 4520 / 45 — No Item Name Available |
| Manufacturer | Drs Environmental Systems Inc |
| Status | CANCELLED |
| Heat Discharge Outlet Type | STATIONARY |
| Maximum Air Flow Rate | 810.0 CUBIC FEET PER MINUTE |
| Heat Medium Type | AIR |
| Inclosure Material | STEEL |
| Heat Delivery Rate | 400000.0 BRITISH THERMAL UNIT |
| Voltage in Volts | 220.0 |
| Frequency in Hertz | 60.0 |
| Height | 26.000 INCHES NOMINAL IN |
| Quantity | 1 |
| Integral Fuel Tank Capacity | 21.0 GALLONS |
| Fuel Type | GASOLINE |
| Fuel Consumption Rate Per Hour | 4.0 GALLONS |
| Fuel Feed Method | INTERNAL PUMP |
| Heating Element Type | COMBUSTION CHAMBER |
| Ignition Method | ELECTRODE |
| Phase | THREE |
| Air Circulation Device | PROPELLER FAN |
| Mounting Type | TRAILER |
| Circulated Air Type | HEATED |
| Current Type | AC |
| Prime Mover Type | GASOLINE ENGINE |
| Operating Control Type | THERMOSTATIC |
| Heat Delivery Direction | HORIZONTAL |
| Depth | 49.000 INCHES NOMINAL IN |
| Air Filter Type | REPLACEABLE PREFORMED |
| Heat Directing Device | FLEXIBLE DUCTS |
| Width | 20.000 INCHES NOMINAL IN |
| Heat Outlet Quantity | 1 |
| Speed Adjustments | SINGLE SPEED |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| BT400-10 | Drs Environmental Systems Inc (USA) |
| BT400-10 | Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA) |
| MILH4607USAFTYPEH1CLASS1AND2 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 8997094 | Us Army Aviation and Missile Command (USA) |
NSN 4520-00-620-4055 is a Heater,duct Type,portable, manufactured by Drs Environmental Systems Inc, classified under FSC 4520 (No Item Name Available). Status: cancelled.
NSN 4520-00-620-4055 has 4 cross-referenced part numbers: BT400-10 (Drs Environmental Systems Inc), BT400-10 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), MILH4607USAFTYPEH1CLASS1AND2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 8997094 (Us Army Aviation and Missile Command).
There is 1 known substitute for 4520-00-620-4055: 4520-00-203-0224. Verify interchangeability with system specifications before substitution.
Key specifications for BT400-10: Heat Discharge Outlet Type: STATIONARY; Maximum Air Flow Rate: 810.0 CUBIC FEET PER MINUTE; Heat Medium Type: AIR; Inclosure Material: STEEL. 29 total characteristics are documented in the Federal Logistics Information System.
NSN 4520-00-620-4055 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.