The Block,stop,brake, cataloged under National Stock Number 1630-00-671-8495, 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1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1630-00-671-8495 |
| Item Name | Block,stop,brake |
| FSC / FSG | 1630 / 16 — Aircraft Wheel and Brake Systems |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY,0.96 IN. LG,0.66 IN. W,1ST END 0.45 IN. H TAPERED TO 0.32 IN. AT 2ND END,ONE EDGE CHAMFERED 45 DEG ALONG LG,0.218 IN. DIA COUNTERSUNK HOLE IN CENTER OF BLOCK IN |
| 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 |
|---|---|
| 3-99616-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1630-00-671-8495 is a Block,stop,brake, classified under FSC 1630, Aircraft Wheel and Brake Systems. Status: active.
Key specifications for 1630-00-671-8495: General Characteristics Item Description: ALUMINUM ALLOY,0.96 IN. LG,0.66 IN. W,1ST END 0.45 IN. H TAPERED TO 0.32 IN. AT 2ND END,ONE EDGE CHAMFERED 45 DEG ALONG LG,0.218 IN. DIA COUNTERSUNK HOLE IN CENTER OF BLOCK IN. 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 1630-00-671-8495 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.