The Butterfly Valve,main Hydraulic S, cataloged under National Stock Number 1720-01-649-4035, is classified within Federal Supply Class 1720 (Aircraft Launching Equipment) of the Aircraft Launch, Landing, and Ground Handling Equipment group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Butterfly Valve,main Hydraulic S |
| FSC / FSG | 1720 — Aircraft Launching Equipment (FSG 17) |
| Parameter | Value |
|---|---|
| NSN | 1720-01-649-4035 |
| Item Name | Butterfly Valve,main Hydraulic S |
| FSC / FSG | 1720 / 17 — Aircraft Launching Equipment |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 519536 | D/9 Drawing number reference only U.S. Government activity |
| 519536-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1720-01-649-4035 is a Butterfly Valve,main Hydraulic S, classified under FSC 1720, Aircraft Launching Equipment. Status: active.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.