The Cylinder Assembly,actuating,line, cataloged under National Stock Number 3040-01-376-7151, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Deval Life Cycle Support Llc. Government technical data includes 22 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3040-01-376-7151 |
| Primary Part Number | 1378AS290-1 |
| Item Name | Cylinder Assembly,actuating,line |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Deval Life Cycle Support Llc |
| Status | ACTIVE |
| First Piston Rod End Thread Class | 3B |
| Mounting Facility Diameter | 0.369 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN |
| Pressure Rating | 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Compressed Length | 7.760 INCHES NOMINAL IN |
| Piston Rod End Similarity | IDENTICAL |
| Extended Length | 14.260 INCHES NOMINAL IN |
| Design Characteristics | SINGLE ACTING SINGLE CYLINDER |
| Port Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| First Piston Rod End Thread Quantity Per Inch | 24 |
| Mounting Provision Arrangement Style | SINGLE HOLE |
| First Piston Rod End Style | INTERNAL THREADED |
| Port Thread Class | 3B |
| Port Thread Quantity Per Inch | 24 |
| Body Material | STEEL CORROSION RESISTING |
| Port Thread Diameter | 0.375 INCHES NOMINAL IN |
| Port Style | GASKET SEAL |
| First Piston Rod End Thread Series Designator | UNF |
| Mounting Provision for Which Designed | UNTHREADED MOUNTING HOLES |
| Integral Valve Operation Method | HYDRAULIC |
| Bore Diameter | 1.250 INCHES NOMINAL IN |
| Mounting Type and Location | FORK PISTON ROD END |
| First Piston Rod End Thread Diameter | 0.375 INCHES NOMINAL IN |
| 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 |
|---|---|
| 1378AS290-1 PRIMARY | Deval Life Cycle Support Llc (USA) |
| Reference | Meaning |
|---|---|
| 1378AS290-1 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| A-82001 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3040-01-376-7151 is a Cylinder Assembly,actuating,line, manufactured by Deval Life Cycle Support Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-376-7151 has 1 manufacturer part number on file: 1378AS290-1 (Deval Life Cycle Support Llc).
Key specifications for 1378AS290-1: First Piston Rod End Thread Class: 3B; Mounting Facility Diameter: 0.369 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN; Pressure Rating: 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Compressed Length: 7.760 INCHES NOMINAL IN. 22 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.