The Piston,linear Actuating Cylinder, cataloged under National Stock Number 3040-01-154-8039, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-154-8039 |
| Primary Part Number | 79178 |
| Item Name | Piston,linear Actuating Cylinder |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator |
| Status | ACTIVE |
| Outside Diameter | 3.734 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 79178 PRIMARY | Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA) |
| Reference | Meaning |
|---|---|
| 78711 | 5/9 Secondary reference Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator |
NSN 3040-01-154-8039 is a Piston,linear Actuating Cylinder, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-154-8039 has 1 manufacturer part number on file: 79178 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator).
Key specifications for 79178: Outside Diameter: 3.734 INCHES NOMINAL IN; Overall Length: 2.812 INCHES NOMINAL IN; Special Features: 0.438 IN.HOLE DIA,3.250 IN.DIA BY 2.625 IN.DEEP CUP 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.
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.