The Cooler,lubricating Oil,engine, cataloged under National Stock Number 2935-01-394-8316, is classified within Federal Supply Class 2935 (Engine System Cooling Components, Aircraft Prime Moving) of the Engine Accessories group. The manufacturer of record is Irl Thermal Systems Ltd. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2935-01-394-8316 |
| Primary Part Number | 45731-1411 |
| Item Name | Cooler,lubricating Oil,engine |
| FSC / FSG | 2935 / 29 — Engine System Cooling Components, Aircraft Prime Moving |
| Manufacturer | Irl Thermal Systems Ltd |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 4080107 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 45731-1411 PRIMARY | Irl Thermal Systems Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 45731-1291 | 5/9 Secondary reference Irl Thermal Systems Ltd |
| 4080269 | D/9 Drawing number reference only Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 2935-01-394-8316 is a Cooler,lubricating Oil,engine, manufactured by Irl Thermal Systems Ltd, classified under FSC 2935, Engine System Cooling Components, Aircraft Prime Moving. Status: active.
NSN 2935-01-394-8316 has 2 manufacturer part numbers on file: 4080107 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 45731-1411 (Irl Thermal Systems Ltd).
Key specifications for 45731-1411: End Item Identification: U/O F100-PW-220 ENGINE. 0 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 2935-01-394-8316 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.