The Piston,valve,pump, cataloged under National Stock Number 1650-00-166-5922, 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 Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1650-00-166-5922 |
| Primary Part Number | 68A25 |
| Item Name | Piston,valve,pump |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| FSC Application Data | PUMP,AXIAL PISTONS,AIRCRAFT HYDRAULIC |
| General Characteristics Item Description | STEEL,HEAT TREAT ROCKWELL A 80-81,0.890 TO 0.900 IN LG,0.6858 TO 0.6863IN O/A OD,GROOVED FOR O RING PACKING 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 |
|---|---|
| 68A25 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
| Reference | Meaning |
|---|---|
| 68A25 | 5/9 Secondary reference General Signal Corp |
| 68A25 | 3/9 Design control — primary reference U.S. Government activity |
NSN 1650-00-166-5922 is a Piston,valve,pump, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-166-5922 has 1 manufacturer part number on file: 68A25 (Eaton Aerospace, Llc Dba Jackson South).
Key specifications for 68A25: FSC Application Data: PUMP,AXIAL PISTONS,AIRCRAFT HYDRAULIC; General Characteristics Item Description: STEEL,HEAT TREAT ROCKWELL A 80-81,0.890 TO 0.900 IN LG,0.6858 TO 0.6863IN O/A OD,GROOVED FOR O RING PACKING IN. 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 1650-00-166-5922 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.