The Valve,by Pass, cataloged under National Stock Number 1630-01-080-0939, is classified within Federal Supply Class 1630 (Aircraft Wheel and Brake Systems) of the Aircraft Components and Accessories group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1630-01-080-0939 |
| Item Name | Valve,by Pass |
| FSC / FSG | 1630 / 16 — Aircraft Wheel and Brake Systems |
| Status | ACTIVE |
| General Characteristics Item Description | U/O MAIN GEAR BRAKES,OPERATING PRESSURE 3000 PSI HYDRAULIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| A61446-1 | 3/2 Design control — primary reference U.S. Government activity |
| 10-60570-2 | 5/2 Secondary reference U.S. Government activity |
NSN 1630-01-080-0939 is a Valve,by Pass, classified under FSC 1630, Aircraft Wheel and Brake Systems. Status: active.
Key specifications for 1630-01-080-0939: General Characteristics Item Description: U/O MAIN GEAR BRAKES,OPERATING PRESSURE 3000 PSI HYDRAULIC; End Item Identification: BOEING ACFT MODEL 727. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1630-01-080-0939 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.