The Valve,bypass,oil Co, cataloged under National Stock Number 2935-00-983-4398, is classified within Federal Supply Class 2935 (Engine System Cooling Components, Aircraft Prime Moving) of the Engine Accessories group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Valve,bypass,oil Co |
| FSC / FSG | 2935 — Engine System Cooling Components, Aircraft Prime Moving (FSG 29) |
| Manufacturers | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445); Rtx Corporation Div Pratt & Whitney (CAGE 52661); Moeller Mfg. Company, Llc Div Aircraft (CAGE 08244) |
| Parameter | Value |
|---|---|
| NSN | 2935-00-983-4398 |
| Primary Part Number | 563333 |
| Item Name | Valve,bypass,oil Co |
| FSC / FSG | 2935 / 29 — Engine System Cooling Components, Aircraft Prime Moving |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 563333 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 563333 | Rtx Corporation Div Pratt & Whitney (USA) |
| 563333 | Moeller Mfg. Company, Llc Div Aircraft (USA) |
| Reference | Meaning |
|---|---|
| 563333 | 5/9 Secondary reference Precision Speed Manufacturing, Llc |
| 563333 | 5/9 Secondary reference Mega Industries |
NSN 2935-00-983-4398 is a Valve,bypass,oil Co, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2935, Engine System Cooling Components, Aircraft Prime Moving. Status: active.
NSN 2935-00-983-4398 has 3 manufacturer part numbers on file: 563333 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 563333 (Rtx Corporation Div Pratt & Whitney), 563333 (Moeller Mfg. Company, Llc Div Aircraft).
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 2935-00-983-4398 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.