The Cooler,lubricating Oil,engine, cataloged under National Stock Number 2935-01-190-4262, is classified within Federal Supply Class 2935 (Engine System Cooling Components, Aircraft Prime Moving) of the Engine Accessories group. The manufacturer of record is Api Heat Transfer Thermasys Corporation. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2935-01-190-4262 |
| Primary Part Number | 0C-642B |
| Item Name | Cooler,lubricating Oil,engine |
| FSC / FSG | 2935 / 29 — Engine System Cooling Components, Aircraft Prime Moving |
| Manufacturer | Api Heat Transfer Thermasys Corporation |
| Status | ACTIVE |
| Heat Transfer Method | INDIRECT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 0C-642B PRIMARY | Api Heat Transfer Thermasys Corporation (USA) |
| Reference | Meaning |
|---|---|
| 0C-642B | 3/9 Design control — primary reference Thermasys Corporation Dba General Thermo Dynamics Div General Thermodynamics Div |
| OC-642B | 5/9 Secondary reference U.S. Government activity |
NSN 2935-01-190-4262 is a Cooler,lubricating Oil,engine, manufactured by Api Heat Transfer Thermasys Corporation, classified under FSC 2935, Engine System Cooling Components, Aircraft Prime Moving. Status: active.
NSN 2935-01-190-4262 has 1 manufacturer part number on file: 0C-642B (Api Heat Transfer Thermasys Corporation).
Key specifications for 0C-642B: Heat Transfer Method: INDIRECT; End Item Identification: 3810-01-145-8288. 1 specification is 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 2935-01-190-4262 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.