The Valve Assembly,hydraulic,aircraf, cataloged under National Stock Number 1650-01-425-6597, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Thomas Instrument, Incorporated. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Valve Assembly,hydraulic,aircraf |
| FSC / FSG | 1650 — Aircraft Hydraulic, Vacuum, and De-icing System Components (FSG 16) |
| Manufacturers | Thomas Instrument, Incorporated (CAGE 5H860) |
| Parameter | Value |
|---|---|
| NSN | 1650-01-425-6597 |
| Primary Part Number | 3U3308-3 |
| Item Name | Valve Assembly,hydraulic,aircraf |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Thomas Instrument, Incorporated |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3U3308-3 | Thomas Instrument, Incorporated (USA) |
| Reference | Meaning |
|---|---|
| 3U3308-3 | 5/9 Secondary reference Woodward Hrt, Inc. Dba Woodward Hrt Inc |
| 3U3308-3 | 3/9 Design control — primary reference U.S. Government activity |
| 17B2C7300-1 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 1650-01-425-6597 is a Valve Assembly,hydraulic,aircraf, manufactured by Thomas Instrument, Incorporated, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-425-6597 has 1 manufacturer part number on file: 3U3308-3 (Thomas Instrument, Incorporated).
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 1650-01-425-6597 has DEMIL Code Q. 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.