The Piston,linear Actuating Cylinder, cataloged under National Stock Number 1650-00-971-3560, 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 Triumph Actuation Systems, Llc Div Triumph Actuation Systems - Freeport. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-00-971-3560 |
| Primary Part Number | 128HM10183-1 |
| Item Name | Piston,linear Actuating Cylinder |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Triumph Actuation Systems, Llc Div Triumph Actuation Systems - Freeport |
| Status | ACTIVE |
| Outside Diameter | 2.240 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 128HM10183-1 PRIMARY | Triumph Actuation Systems, Llc Div Triumph Actuation Systems - Freeport (USA) |
| 128HM10183-1 | Howe Machine & Tool Corp. Dba Howe Machine & Tool Corp (USA) |
| 128HM10183-1 | Marvin Engineering Co, Inc (USA) |
| Reference | Meaning |
|---|---|
| 128HM10183-1 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| 128HM10183-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 1650-00-971-3560 is a Piston,linear Actuating Cylinder, manufactured by Triumph Actuation Systems, Llc Div Triumph Actuation Systems - Freeport, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-971-3560 has 3 manufacturer part numbers on file: 128HM10183-1 (Triumph Actuation Systems, Llc Div Triumph Actuation Systems - Freeport), 128HM10183-1 (Howe Machine & Tool Corp. Dba Howe Machine & Tool Corp), 128HM10183-1 (Marvin Engineering Co, Inc).
Key specifications for 128HM10183-1: Outside Diameter: 2.240 INCHES NOMINAL IN; Overall Length: 20.062 INCHES NOMINAL IN; Special Features: PISTON END HAS A GROOVE 0.429 IN. W/1.082 IN. DIA OTHER END THD 1-1/0-12UNF-3B IN; Material: STEEL CORROSION RESISTING. 2 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 1650-00-971-3560 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.