The Cylinder Assembly,actuating,line, cataloged under National Stock Number 3040-01-244-9580, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Mariner Supply, Inc. Dba Go2marine. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 3040-01-244-9580 |
| Primary Part Number | K-31 |
| Item Name | Cylinder Assembly,actuating,line |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Mariner Supply, Inc. Dba Go2marine |
| Status | ACTIVE |
| Compressed Length | 38.370 INCHES NOMINAL IN |
| Extended Length | 48.370 INCHES NOMINAL IN |
| Design Characteristics | SINGLE ACTING SINGLE CYLINDER |
| Integral Valve Operation Method | HYDRAULIC |
| Bore Diameter | 2.000 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 |
NSN 3040-01-244-9580 is a Cylinder Assembly,actuating,line, manufactured by Mariner Supply, Inc. Dba Go2marine, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-244-9580 has 3 manufacturer part numbers on file: K-31 (Mariner Supply, Inc. Dba Go2marine), K-31 (Hynautic Inc Div of Sta-Rite Industries Inc), B-500400 (Hynautic Inc Div of Sta-Rite Industries Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-277-8002, 4520-01-357-1592. Verify interchangeability with system specifications before substitution.
Key specifications for K-31: Compressed Length: 38.370 INCHES NOMINAL IN; Extended Length: 48.370 INCHES NOMINAL IN; Design Characteristics: SINGLE ACTING SINGLE CYLINDER; Integral Valve Operation Method: HYDRAULIC. 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.