The Valve,fluid Pressure Regulating,, cataloged under National Stock Number 1650-01-145-0233, 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1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 1650-01-145-0233 |
| Item Name | Valve,fluid Pressure Regulating, |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Status | ACTIVE |
| FSC Application Data | AIRCRAFT HYDRAULIC SYSTEM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 27530 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1650-01-145-0233 is a Valve,fluid Pressure Regulating,, 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): 4720-01-305-8437, 5120-01-399-9252. Verify interchangeability with system specifications before substitution.
Key specifications for 1650-01-145-0233: FSC Application Data: AIRCRAFT HYDRAULIC SYSTEM; End Item Identification: AIRCRAFT F-111, AIRCRAFT HYDRAULIC SYSTEM. 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.
NSN 1650-01-145-0233 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.