The Heater,aircraft, cataloged under National Stock Number 1660-01-372-2339, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Dynamic Air Engineering, Inc.. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-372-2339 |
| Primary Part Number | 6499-344773-1 |
| Item Name | Heater,aircraft |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Dynamic Air Engineering, Inc. |
| Status | ACTIVE |
| Maximum Air Flow Rate | 20.0 CUBIC FEET PER MINUTE |
| Speed Adjustments | SINGLE SPEED |
| Heat Delivery Rate | 1200.0 BRITISH THERMAL UNIT |
| Phase | THREE |
| Frequency in Hertz | 60.0 |
| Current Type | AC |
| Quantity | 1 |
| Voltage in Volts | 208.0 |
| Diameter | 2.780 INCHES NOMINAL IN |
| Heat Outlet Quantity | 1 |
| Heat Discharge Outlet Type | STATIONARY |
| Heat Delivery Direction | HORIZONTAL |
| Height | 6.480 INCHES MAXIMUM IN |
| Air Circulation Device | PROPELLER FAN |
| Width | 7.560 INCHES MINIMUM AND 7.680 INCHES MAXIMUM IN |
| Test Data Document | 96906-MIL-STD-454 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.). |
| Prime Mover Type | ELECTRIC MOTOR |
| Circulated Air Type | HEATED |
| Heat Directing Device | FLEXIBLE DUCTS |
| Mounting Type | VENTILATION DUCT |
| Heating Element Type | ELECTRIC NONIMMERSION |
| Current Rating in Amps | 2.8 |
| 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 |
|---|---|
| 6499-344773-1 PRIMARY | Dynamic Air Engineering, Inc. (USA) |
| M2971K500-3 PRIMARY | Dynamic Air Engineering, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 6499-344773-1 | 5/9 Secondary reference Textron Systems Corporation Dba Textron Systems Corp |
| 6499-344773-1 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 1660-01-372-2339 is a Heater,aircraft, manufactured by Dynamic Air Engineering, Inc., classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-372-2339 has 2 manufacturer part numbers on file: 6499-344773-1 (Dynamic Air Engineering, Inc.), M2971K500-3 (Dynamic Air Engineering, Inc.).
Key specifications for 6499-344773-1: Maximum Air Flow Rate: 20.0 CUBIC FEET PER MINUTE; Speed Adjustments: SINGLE SPEED; Heat Delivery Rate: 1200.0 BRITISH THERMAL UNIT; Phase: THREE. 22 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.