The Knob,valve, cataloged under National Stock Number 1650-00-612-1607, 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 Tactair Fluid Controls Inc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Knob,valve |
| FSC / FSG | 1650 — Aircraft Hydraulic, Vacuum, and De-icing System Components (FSG 16) |
| Manufacturers | Northrop Grumman Systems Corporation (CAGE 79RG9); Tactair Fluid Controls Inc (CAGE 70236); Northrop Grumman Systems Corporation (CAGE 26512) |
| Parameter | Value |
|---|---|
| NSN | 1650-00-612-1607 |
| Primary Part Number | HP348212 |
| Item Name | Knob,valve |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Tactair Fluid Controls Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
NSN 1650-00-612-1607 is a Knob,valve, manufactured by Tactair Fluid Controls Inc, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-612-1607 has 3 manufacturer part numbers on file: HP348212 (Northrop Grumman Systems Corporation), HP348212 (Tactair Fluid Controls Inc), HP348212 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5355-01-045-8541. Verify interchangeability with system specifications before substitution.
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.