The Piston,snubber, cataloged under National Stock Number 1650-00-421-4521, 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 1 specification, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1650-00-421-4521 |
| Primary Part Number | 1128CVM40203-11 |
| Item Name | Piston,snubber |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | 1.906 IN. O/A LG; 2.491 IN. MAX OD IN |
| 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 |
|---|---|
| 1128CVM40203-11 | Fort Walton Machining Inc (USA) |
| 1128CVM40203-11 | Capy Machine Shop Inc. Dba Capy Machine Shop Inc (USA) |
| 1128CVM40203-11 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 1128CVM40203-11 | Aero Components, Llc (USA) |
| 1128CVM40203-11 | Thomas Instruments Inc (USA) |
| Reference | Meaning |
|---|---|
| 1128CVM40203-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 1128CVM40203 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
NSN 1650-00-421-4521 is a Piston,snubber, manufactured by Northrop Grumman Systems Corporation, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-421-4521 has 5 manufacturer part numbers on file: 1128CVM40203-11 (Fort Walton Machining Inc), 1128CVM40203-11 (Capy Machine Shop Inc. Dba Capy Machine Shop Inc), 1128CVM40203-11 (Northrop Grumman Systems Corporation), 1128CVM40203-11 (Aero Components, Llc), 1128CVM40203-11 (Thomas Instruments Inc).
Key specifications for 1128CVM40203-11: General Characteristics Item Description: 1.906 IN. O/A LG; 2.491 IN. MAX OD IN. 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 1650-00-421-4521 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.