The Cooler,lubricating Oil,engine, cataloged under National Stock Number 2935-00-520-5524, is classified within Federal Supply Class 2935 (Engine System Cooling Components, Aircraft Prime Moving) of the Engine Accessories group. The manufacturer of record is Triumph Thermal Systems, Llc. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2935-00-520-5524 |
| Primary Part Number | UA535953-6 |
| Item Name | Cooler,lubricating Oil,engine |
| FSC / FSG | 2935 / 29 — Engine System Cooling Components, Aircraft Prime Moving |
| Manufacturer | Triumph Thermal Systems, Llc |
| Status | ACTIVE |
| FSC Application Data | ENGINE COOLING SYSTEM COMPONENTS,AIRCRAFT |
| Core Frontal Area | 11.160 SQUARE INCHES |
| Length | 6.160 INCHES NOMINAL IN |
| Effective Heat Transfer Surface Area | 6.960 SQUARE FEET |
| Oil Flow Rate | 50.000 POUNDS PER MINUTE LBS |
| Height | 5.250 INCHES NOMINAL IN |
| Width | 5.840 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY OVERALL |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY P/N 4044343 FSCM 77445 |
| 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 |
|---|---|
| UA535953-6 | Triumph Thermal Systems, Llc (USA) |
| 4044343 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 2935-00-520-5524 is a Cooler,lubricating Oil,engine, manufactured by Triumph Thermal Systems, Llc, classified under FSC 2935, Engine System Cooling Components, Aircraft Prime Moving. Status: active.
NSN 2935-00-520-5524 has 2 manufacturer part numbers on file: UA535953-6 (Triumph Thermal Systems, Llc), 4044343 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for UA535953-6: FSC Application Data: ENGINE COOLING SYSTEM COMPONENTS,AIRCRAFT; Core Frontal Area: 11.160 SQUARE INCHES; Length: 6.160 INCHES NOMINAL IN; Effective Heat Transfer Surface Area: 6.960 SQUARE FEET. 9 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 2935-00-520-5524 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.