The Servocylinder, cataloged under National Stock Number 1650-01-089-6829, 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 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-089-6829 |
| Primary Part Number | A51H9000-13 |
| Item Name | Servocylinder |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| Status | ACTIVE |
| Second End Hole Diameter | 1.4995 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN |
| Compressed Length | 34.990 INCHES MINIMUM AND 35.110 INCHES MAXIMUM IN |
| Piston Rod End Similarity | NOT IDENTICAL |
| Extended Length | 43.740 INCHES MINIMUM AND 43.860 INCHES MAXIMUM IN |
| Design Characteristics | SINGLE ACTING SINGLE CYLINDER |
| Second Piston Rod End Style | BEARING TYPE |
| Criticality Code Justification | AMDX AND AMGS |
| First Piston Rod End Style | BEARING TYPE |
| Second End Outside Diameter | 4.100 INCHES MINIMUM AND 4.220 INCHES MAXIMUM IN |
| First End Hole Diameter | 1.8745 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN |
| Integral Valve Operation Method | HYDRAULIC |
| Bore Diameter | 5.474 INCHES NOMINAL IN |
| Mounting Type and Location | BEARING BOTH ENDS |
| First End Outside Diameter | 4.320 INCHES NOMINAL IN |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY THE SOURCE CONTROL DRAWING NO. |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| A51H9000-13 | Northrop Grumman Systems Corporation (USA) |
| A51H9000-13 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems (USA) |
| 3187000-13 | Moog Military Aircraft Llc (USA) |
| Reference | Meaning |
|---|---|
| 3187000-13 | 5/9 Secondary reference Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div |
NSN 1650-01-089-6829 is a Servocylinder, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-089-6829 has 3 manufacturer part numbers on file: A51H9000-13 (Northrop Grumman Systems Corporation), A51H9000-13 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems), 3187000-13 (Moog Military Aircraft Llc).
Key specifications for A51H9000-13: Overall Height: 12.230 INCHES NOMINAL IN; Second End Hole Diameter: 1.4995 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN; Compressed Length: 34.990 INCHES MINIMUM AND 35.110 INCHES MAXIMUM IN; Piston Rod End Similarity: NOT IDENTICAL. 15 specifications are 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 1650-01-089-6829 has DEMIL Code D. 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.