The Head,linear Actuating Cylinder, cataloged under National Stock Number 1650-00-770-7840, 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 Fontal Controls Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-00-770-7840 |
| Primary Part Number | 4-43202-1 |
| Item Name | Head,linear Actuating Cylinder |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Fontal Controls Inc. |
| Status | ACTIVE |
| Material | ALUMINUM ALLOY AND STEEL |
| 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 |
|---|---|
| 4-43202-1 PRIMARY | Fontal Controls Inc. (USA) |
| 4-43202-1 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 4-43202-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 4-43202-1 | 5/9 Secondary reference Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
NSN 1650-00-770-7840 is a Head,linear Actuating Cylinder, manufactured by Fontal Controls Inc., classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-770-7840 has 2 manufacturer part numbers on file: 4-43202-1 (Fontal Controls Inc.), 4-43202-1 (Northrop Grumman Systems Corporation).
Key specifications for 4-43202-1: Overall Length: 8.589 INCHES MINIMUM AND 8.599 INCHES MAXIMUM IN; Special Features: 2.750-16 UN-3A THD ONE END,1.620 IN.TO 1.660 IN.THD LG A; Material: ALUMINUM ALLOY AND STEEL. 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 1650-00-770-7840 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.