The Guide,valve,hydraulic, cataloged under National Stock Number 1650-01-033-9820, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) 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1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-033-9820 |
| Item Name | Guide,valve,hydraulic |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,416 CRES PER QQ-S-764;H/T RC25/32 PER MIL-H-6875;PASSIVATE PER SPS 209/4;0.280 IN. LG;0.425 IN. OD;0.373 IN. FIRST END DIA;0.250 IN. DIA CHAMFER END,30.0 DEGREE CHAMFER ANGLE IN |
| 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 |
|---|---|
| 28831 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1650-01-033-9820 is a Guide,valve,hydraulic, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 1660-01-441-2743, 3950-01-663-0650. Verify interchangeability with system specifications before substitution.
Key specifications for 1650-01-033-9820: General Characteristics Item Description: STEEL,416 CRES PER QQ-S-764;H/T RC25/32 PER MIL-H-6875;PASSIVATE PER SPS 209/4;0.280 IN. LG;0.425 IN. OD;0.373 IN. FIRST END DIA;0.250 IN. DIA CHAMFER END,30.0 DEGREE CHAMFER ANGLE IN; End Item Identification: VALVE,HYDR 1650-01-042-9167;3A ACFT A. 1 specification is documented in the U.S. Government catalog.
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.