The Head,linear Actuating Cylinder, cataloged under National Stock Number 1650-00-906-7552, 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. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 1650-00-906-7552 |
| Primary Part Number | 128HM10423-11 |
| 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 |
| 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 |
|---|---|
| 128HM10423-11 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 128HM10423-11 | 5/9 Secondary reference Tek Precision Co Limited |
| 128HM10423 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
| 128HM10423-11 | 5/9 Secondary reference Triumph Actuation Systems, Llc Div Triumph Actuation Systems - Freeport |
| 128HM10423-11 | 5/9 Secondary reference S & L Aerospace Metals Llc |
| 128HM10423-11 | 5/9 Secondary reference Wiebel Aerospace (1995) Inc |
| 128HM10423-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 1650-00-906-7552 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 1650-00-906-7552 has 1 manufacturer part number on file: 128HM10423-11 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 1650-00-906-7553. Verify interchangeability with system specifications before substitution.
Key specifications for 128HM10423-11: Special Features: C/O FITTING 1;BEARING 1;PLUG-PIN 1. 0 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 1650-00-906-7552 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.