The Valve,dual Brake, cataloged under National Stock Number 1630-00-121-9687, 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1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1630-00-121-9687 |
| Item Name | Valve,dual Brake |
| FSC / FSG | 1630 / 16 — Aircraft Wheel and Brake Systems |
| Status | ACTIVE |
| General Characteristics Item Description | EMERGENCY HYDRAULIC SHUTTLE TYPE,FIVE PORTS,ONE PRIMARY INLET,ONE EMERGENCY SHUTTLE INLET,THREE OUTLET PORTS,EMERGENCY HYDRAULIC FLUID PRESSURE ACTUATED SHUTTLE,BODY MATL ALUMINUM ALLOY QQ-A-354 COND T,MATL CRES,FURNISHED ITEMS,1 EA 45 DEG ELBOW,1 EA 90 DEG ELBOW |
| 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 |
|---|---|
| 4248058-500 | 5/9 Secondary reference The Boeing Company |
| 4248058-500 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1630-00-121-9687 is a Valve,dual Brake, classified under FSC 1630, Aircraft Wheel and Brake Systems. Status: active.
Key specifications for 1630-00-121-9687: General Characteristics Item Description: EMERGENCY HYDRAULIC SHUTTLE TYPE,FIVE PORTS,ONE PRIMARY INLET,ONE EMERGENCY SHUTTLE INLET,THREE OUTLET PORTS,EMERGENCY HYDRAULIC FLUID PRESSURE ACTUATED SHUTTLE,BODY MATL ALUMINUM ALLOY QQ-A-354 COND T,MATL CRES,FURNISHED ITEMS,1 EA 45 DEG ELBOW,1 EA 90 DEG ELBOW. 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 1630-00-121-9687 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.