The Cooler,lubricating Oil,engine, cataloged under National Stock Number 2935-00-203-8730, is classified within Federal Supply Class 2935 (Engine System Cooling Components, Aircraft Prime Moving) of the Engine Accessories group. The manufacturer of record is Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2935-00-203-8730 |
| Primary Part Number | AIR4125-11-1 |
| Item Name | Cooler,lubricating Oil,engine |
| FSC / FSG | 2935 / 29 — Engine System Cooling Components, Aircraft Prime Moving |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| FSC Application Data | ENGINE COOLING SYSTEM COMPONENTS,AIRCRAFT |
| Core Frontal Area | 95.000 SQUARE INCHES |
| Length | 12.620 INCHES NOMINAL IN |
| Effective Heat Transfer Surface Area | 66.200 SQUARE FEET |
| Oil Flow Rate | 95.000 POUNDS PER MINUTE LBS |
| Width | 11.810 INCHES NOMINAL IN |
| Material | ALUMINUM OVERALL |
| Thickness | 9.560 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| AIR4125-11-1 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| Reference | Meaning |
|---|---|
| AIR4125-11-1 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
| AN4125-11-1 | 5/2 Secondary reference U.S. Government activity |
NSN 2935-00-203-8730 is a Cooler,lubricating Oil,engine, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 2935, Engine System Cooling Components, Aircraft Prime Moving. Status: active.
NSN 2935-00-203-8730 has 1 manufacturer part number on file: AIR4125-11-1 (Honeywell International Inc. Div Aerospace - Torrance).
Key specifications for AIR4125-11-1: FSC Application Data: ENGINE COOLING SYSTEM COMPONENTS,AIRCRAFT; Core Frontal Area: 95.000 SQUARE INCHES; Length: 12.620 INCHES NOMINAL IN; Effective Heat Transfer Surface Area: 66.200 SQUARE FEET. 8 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 2935-00-203-8730 has DEMIL Code Q. 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.