The Piston,linear Actuating Cylinder, cataloged under National Stock Number 3040-01-449-9986, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-449-9986 |
| Primary Part Number | 512-6404652-AY96 |
| 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 |
|---|---|
| 512-6404652-AY96 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| DF6503-173 ASSY 96 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 211045125 | 3/2 Design control — primary reference U.S. Government activity |
| 6404652 | D/9 Drawing number reference only Naval Sea Systems Command |
| DF6503-173 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 3040-01-449-9986 is a Piston,linear Actuating Cylinder, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-449-9986 has 1 manufacturer part number on file: 512-6404652-AY96 (Naval Sea Systems Command).
Key specifications for 512-6404652-AY96: Special Features: CROSS-CONNECT HYDRAULIC VALVE PISTON ASSY.FOR DIESEL EXHAUST;INCLUDES GUIDE,NUT,SCREW,PLATE,ARM,WASHERS,CRANKSHAFT AND BEARING; End Item Identification: SEAWOLF CLASS SSN. 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.