The Cooler,hydraulic Oil,aircraft, cataloged under National Stock Number 1650-01-302-8636, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Rtx Corporation Div Pratt & Whitney. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-302-8636 |
| Primary Part Number | 737557 |
| Item Name | Cooler,hydraulic Oil,aircraft |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Rtx Corporation Div Pratt & Whitney |
| Status | ACTIVE |
| FSC Application Data | GEARBOX,MAIN |
| Air Flow Rate | 200.000 POUNDS PER MINUTE LBS |
| Inclosure Shape | CYLINDRICAL |
| Core Shape | CYLINDRICAL |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY THE SOURCE CONTROL DWG NO. |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 737557 | Rtx Corporation Div Pratt & Whitney (USA) |
| Reference | Meaning |
|---|---|
| 737557 | 5/9 Secondary reference U.S. Government activity |
| 214-040-863-103 | 1/3 Source control — Government-approved source U.S. Government activity |
NSN 1650-01-302-8636 is a Cooler,hydraulic Oil,aircraft, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-302-8636 has 1 manufacturer part number on file: 737557 (Rtx Corporation Div Pratt & Whitney).
Key specifications for 737557: FSC Application Data: GEARBOX,MAIN; Air Flow Rate: 200.000 POUNDS PER MINUTE LBS; Inclosure Shape: CYLINDRICAL; Core Shape: CYLINDRICAL. 5 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.
NSN 1650-01-302-8636 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.