The Cylinder Assembly,actuating,line, cataloged under National Stock Number 3040-01-322-4840, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Monarch Industries Ltd. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-322-4840 |
| Primary Part Number | 40TR18 |
| Item Name | Cylinder Assembly,actuating,line |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Monarch Industries Ltd |
| Status | ACTIVE |
| Compressed Length | 28.250 INCHES NOMINAL IN |
| Extended Length | 46.250 INCHES NOMINAL IN |
| Design Characteristics | DOUBLE ACTING SINGLE CYLINDER |
| First Piston Rod End Style | UNABLE TO DECODE |
| Bore Diameter | 1.500 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 |
|---|---|
| 40TR18 PRIMARY | Monarch Industries Ltd (CAN) |
| LK20C PC 0193 | Liftking Manufacturing Corp (CAN) |
| Reference | Meaning |
|---|---|
| LK20C | D/9 Drawing number reference only Liftking Manufacturing Corp |
NSN 3040-01-322-4840 is a Cylinder Assembly,actuating,line, manufactured by Monarch Industries Ltd, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-322-4840 has 2 manufacturer part numbers on file: 40TR18 (Monarch Industries Ltd), LK20C PC 0193 (Liftking Manufacturing Corp).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-322-4841, 3040-01-322-4842. Verify interchangeability with system specifications before substitution.
Key specifications for 40TR18: Compressed Length: 28.250 INCHES NOMINAL IN; Extended Length: 46.250 INCHES NOMINAL IN; Design Characteristics: DOUBLE ACTING SINGLE CYLINDER; First Piston Rod End Style: UNABLE TO DECODE. 5 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.