The Cylinder Assembly,actuating,line, cataloged under National Stock Number 3040-01-058-4409, 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 Jackson South. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3040-01-058-4409 |
| Primary Part Number | S21B22-2CAYNN12N11 |
| Item Name | Cylinder Assembly,actuating,line |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| First Piston Rod End Thread Class | UNABLE TO DECODE |
| Mounting Facility Thread Class | 2B |
| Design Characteristics | SINGLE ACTING SINGLE CYLINDER |
| Mounting Facility Thread Quantity Per Inch | 12 |
| Body Material | STEEL |
| Mounting Facility Thread Diameter | 1.375 INCHES NOMINAL IN |
| Port Style | UNABLE TO DECODE |
| Mounting Facility Thread Series Designator | UNF |
| Mounting Provision for Which Designed | THREADED MOUNTING HOLES |
| Integral Valve Operation Method | HYDRAULIC |
| Bore Diameter | 2.750 INCHES NOMINAL IN |
| Mounting Type and Location | BALL STUD CYLINDER HEAD END |
| Mounting Facility Thread Direction | RIGHT-HAND |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| HIS21B22-2CAYNN12N11 | Hader, Inc. (USA) |
| S21B22-2CAYNN12N11 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
| Reference | Meaning |
|---|---|
| S21B22-2CAYNN12N11-000 | 5/9 Secondary reference Eaton Aerospace, Llc Dba Jackson South |
| 2590010584409 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 3040-01-058-4409 is a Cylinder Assembly,actuating,line, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-058-4409 has 2 manufacturer part numbers on file: HIS21B22-2CAYNN12N11 (Hader, Inc.), S21B22-2CAYNN12N11 (Eaton Aerospace, Llc Dba Jackson South).
Key specifications for S21B22-2CAYNN12N11: First Piston Rod End Thread Class: UNABLE TO DECODE; Mounting Facility Thread Class: 2B; Design Characteristics: SINGLE ACTING SINGLE CYLINDER; Mounting Facility Thread Quantity Per Inch: 12. 13 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.