The Heater,aircraft Engine Maintenan, cataloged under National Stock Number 4920-01-386-7909, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-386-7909 |
| Primary Part Number | PWA57825 |
| Item Name | Heater,aircraft Engine Maintenan |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Phase | THREE |
| Frequency in Hertz | 50.0 AND 60.0 |
| Voltage in Volts and Current Type | 220.0 AC |
| Overall Diameter | 32.000 INCHES NOMINAL IN |
| Temp Rating | 400.0 FAHRENHEIT MAXIMUM DEGF |
| Supplementary Features | REPLACING PWA57632 BECAUSE HEATERCAN BE OVERTEMPED AND DID NOT ALLOW HEATING OF FAN CASES FOR INLET CASE INSTALLATION |
| Reference Data and Literature | SERD NO. 7094; T.O. 2J-F100-94 |
| Heating Element | INCLUDED |
| Wattage Rating | 2000.00 WATTS |
| Functional Description | REQUIRED TO EXPAND THE FAN CASE |
| 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 |
|---|---|
| PWA57825 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| PWA57805 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 4920-01-386-7909 is a Heater,aircraft Engine Maintenan, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-386-7909 has 1 manufacturer part number on file: PWA57825 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for PWA57825: Phase: THREE; Frequency in Hertz: 50.0 AND 60.0; Voltage in Volts and Current Type: 220.0 AC; Overall Diameter: 32.000 INCHES NOMINAL IN. 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.