The Piston,linear Actuating Cylinder, cataloged under National Stock Number 3040-01-338-4524, 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. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-338-4524 |
| Primary Part Number | 704-6294478-3 |
| Item Name | Piston,linear Actuating Cylinder |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| 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 |
|---|---|
| 704-6294478-3 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 704-6294478 | D/9 Drawing number reference only Naval Sea Systems Command |
| 704-6294478-3 | 3/9 Design control — primary reference Newport News Shipbuilding and Dry Dock Co Sub of Tenneco Inc |
NSN 3040-01-338-4524 is a Piston,linear Actuating Cylinder, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-338-4524 has 1 manufacturer part number on file: 704-6294478-3 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-339-6818, 3040-01-351-1640. Verify interchangeability with system specifications before substitution.
Key specifications for 704-6294478-3: Special Features: NICKEL,ALUMINUM,BRONZE PER QQ-C-465; MIN DIA 3.243 IN.MAX 3.245 IN.,O/A LG 3.875 IN.,0.203 IN. DIA TAP DRILL THRU ONE SIDE AND TAP 1/4-20UNC-2B THRU 0.281 IN. DIA C9BORE BY 0.625 IN. DEEP IN; End Item Identification: 3040-01-334-0123 CYLINDER,HYDRAULIC ACCUMULATOR. 0 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.