The Head,linear Actuating Cylinder, cataloged under National Stock Number 1650-00-971-3428, 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. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1650-00-971-3428 |
| Primary Part Number | 128HM10118-1 |
| Item Name | Head,linear Actuating Cylinder |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Overall Thickness | 3.000 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| 128HM10118-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 128HM10118-1 | Triumph Actuation Systems, Llc Div Triumph Actuation Systems - Freeport (USA) |
| Reference | Meaning |
|---|---|
| 128HM10118 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
| 128HM10118-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 1650-00-971-3428 is a Head,linear Actuating Cylinder, manufactured by Northrop Grumman Systems Corporation, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-971-3428 has 2 manufacturer part numbers on file: 128HM10118-1 (Northrop Grumman Systems Corporation), 128HM10118-1 (Triumph Actuation Systems, Llc Div Triumph Actuation Systems - Freeport).
Key specifications for 128HM10118-1: Overall Thickness: 3.000 INCHES MAXIMUM IN; Overall Length: 6.312 INCHES MAXIMUM IN; Material: ALUMINUM ALLOY. 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 1650-00-971-3428 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.