The Rod,piston,linear Actuating Cyli, cataloged under National Stock Number 3040-01-339-6818, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-339-6818 |
| Primary Part Number | 704-6294478-4 |
| Item Name | Rod,piston,linear Actuating Cyli |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| End Connection Type | THREADED |
| Material | COPPER ALLOY |
| Thread Size and Series/type Designator | 0.375-16 UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 704-6294478-4 PRIMARY | Naval Sea Systems Command (USA) |
| 704-6294478-4 PRIMARY | Loctite Corp (USA) |
| Reference | Meaning |
|---|---|
| 704-6294478 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-339-6818 is a Rod,piston,linear Actuating Cyli, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-339-6818 has 2 manufacturer part numbers on file: 704-6294478-4 (Naval Sea Systems Command), 704-6294478-4 (Loctite Corp).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-351-1640. Verify interchangeability with system specifications before substitution.
Key specifications for 704-6294478-4: End Connection Type: THREADED; Overall Length: 7.062 INCHES MAXIMUM IN; Special Features: 0.875 IN.MAX DIA;1.125 IN.THD LG 1 END,AND 0.625 IN.THD LG OTHER END;LONGEST THD END ALSO HAS 2 FLATS,180 DEG APART,0.500 IN.LG,0.750 IN.ACROSS FLATS IN; Material: COPPER ALLOY. 3 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.