The Heater,duct Type,portable, cataloged under National Stock Number 4520-00-817-1793, 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 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-817-1793 |
| Primary Part Number | H40 |
| Item Name | Heater,duct Type,portable |
| FSC / FSG | 4520 / 45 — No Item Name Available |
| Manufacturer | Drs Environmental Systems Inc |
| Status | ACTIVE |
| Heat Medium Type | AIR |
| Heat Delivery Rate | 100000.0 BRITISH THERMAL UNIT |
| Prime Mover Type | DIESEL ENGINE |
| Depth | 9.000 INCHES NOMINAL IN |
| Radio Interference Suppression Type | AF, MIL-STD-826, RADIO SUPPRESSION |
| Fuel Type | BUTANE |
| Inclosure Material | STEEL |
| Frequency in Hertz | 60.0 |
| Width | 12.000 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM |
| Voltage in Volts | 220.0 AND 440.0 |
| Reference Data and Literature | AF TO. 35E7-6-9-1 |
| Operating Control Type | HAND SWITCH |
| Fuel Feed Method | EXTERNAL PRESSURE |
| Phase | THREE |
| Ignition Method | MANUAL |
| Current Rating in Amps | 1.5 |
| Circulated Air Type | HEATED |
| Quantity | 1 |
| Current Type | AC |
| Height | 42.000 INCHES NOMINAL IN |
| Heating Element Type | BURNER |
| Speed Adjustments | SINGLE SPEED |
| Outlet Position | IN THE SAME DIRECTION |
| Heat Directing Device | ADJUSTABLE LOUVER AND FLEXIBLE DUCTS |
| Heat Outlet Quantity | 2 |
| Heat Delivery Direction | HORIZONTAL |
| Heat Discharge Outlet Type | STATIONARY |
| Air Circulation Device | SQUIRREL CAGE BLOWER |
| Mounting Type | HAND CARRY |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4520-00-817-1793 is a Heater,duct Type,portable, manufactured by Drs Environmental Systems Inc, classified under FSC 4520 (No Item Name Available). Status: active.
NSN 4520-00-817-1793 has 2 cross-referenced part numbers: H40 (Drs Environmental Systems Inc), H40 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems).
There are 8 known substitutes for 4520-00-817-1793: 3110-00-044-4869, 3411-00-497-2899, 3110-00-555-5423 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for H40: Heat Medium Type: AIR; Heat Delivery Rate: 100000.0 BRITISH THERMAL UNIT; Prime Mover Type: DIESEL ENGINE; Depth: 9.000 INCHES NOMINAL IN. 30 total characteristics are documented in the Federal Logistics Information System.