The Cylinder Assembly,actuating,line, cataloged under National Stock Number 3040-01-163-6865, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 12 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-163-6865 |
| Primary Part Number | 7M746-1 |
| Item Name | Cylinder Assembly,actuating,line |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| First Piston Rod End Thread Class | UNABLE TO DECODE |
| Compressed Length | 19.810 INCHES NOMINAL IN |
| Extended Length | 29.810 INCHES NOMINAL IN |
| Design Characteristics | SINGLE ACTING SINGLE CYLINDER |
| First Piston Rod End Thread Quantity Per Inch | UNABLE TO DECODE |
| First End External Thread Length | UNABLE TO DECODE |
| First Piston Rod End Style | UNABLE TO DECODE |
| Body Material | STEEL CORROSION RESISTING |
| First Piston Rod End Thread Series Designator | UNABLE TO DECODE |
| Bore Diameter | 1.000 INCHES NOMINAL IN |
| First Piston Rod End Thread Diameter | UNABLE TO DECODE |
| First End Outside Diameter | UNABLE TO DECODE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3040-01-163-6865 is a Cylinder Assembly,actuating,line, manufactured by The Boeing Company Div Defense, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-163-6865 has 2 manufacturer part numbers on file: 7M746-1 (The Boeing Company Div Defense), B-6447 (Milwaukee Cylinder Inc).
1 possible match (shared part number, not a government interchangeability claim): 5950-01-373-2662. Verify interchangeability with system specifications before substitution.
Key specifications for 7M746-1: First Piston Rod End Thread Class: UNABLE TO DECODE; Compressed Length: 19.810 INCHES NOMINAL IN; Extended Length: 29.810 INCHES NOMINAL IN; Design Characteristics: SINGLE ACTING SINGLE CYLINDER. 12 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.