The Rotary Valve Assembly, cataloged under National Stock Number 2935-00-124-4135, is classified within Federal Supply Class 2935 (Engine System Cooling Components, Aircraft Prime Moving) of the Engine Accessories group. The manufacturer of record is General Motors Corp. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2935-00-124-4135 |
| Primary Part Number | 8504769 |
| Item Name | Rotary Valve Assembly |
| FSC / FSG | 2935 / 29 — Engine System Cooling Components, Aircraft Prime Moving |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| FSC Application Data | ENGINE COOLING SYSTEM COMPONENTS,AIRCRAFT |
| General Characteristics Item Description | 10.781 IN. O/A LG,7.625 IN. O/A W,3.375 IN. O/A DIA,BY-PASS VALVE INCL,COOLER INLET OUTLET INCL IN |
| 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 |
|---|---|
| 8504769 PRIMARY | General Motors Corp (USA) |
| Reference | Meaning |
|---|---|
| 8504769 | 5/9 Secondary reference General Motors Corp Harrison Radiator Div |
NSN 2935-00-124-4135 is a Rotary Valve Assembly, manufactured by General Motors Corp, classified under FSC 2935, Engine System Cooling Components, Aircraft Prime Moving. Status: active.
NSN 2935-00-124-4135 has 1 manufacturer part number on file: 8504769 (General Motors Corp).
Key specifications for 8504769: FSC Application Data: ENGINE COOLING SYSTEM COMPONENTS,AIRCRAFT; General Characteristics Item Description: 10.781 IN. O/A LG,7.625 IN. O/A W,3.375 IN. O/A DIA,BY-PASS VALVE INCL,COOLER INLET OUTLET INCL IN. 2 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 2935-00-124-4135 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.