The Piston,linear Actuating Cylinder, cataloged under National Stock Number 3040-00-405-1866, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-405-1866 |
| Primary Part Number | W95921 |
| Item Name | Piston,linear Actuating Cylinder |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| Status | ACTIVE |
| Outside Diameter | 1.375 INCHES NOMINAL IN |
| Material | ALUMINUM |
| 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 |
|---|---|
| W95921 | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| 3W95921 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| W95921 | 3/9 Design control — primary reference U.S. Government activity |
| W95921 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| W95921 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| 3W95921 | 5/9 Secondary reference U.S. Government activity |
NSN 3040-00-405-1866 is a Piston,linear Actuating Cylinder, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-405-1866 has 1 manufacturer part number on file: W95921 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions).
Key specifications for W95921: Outside Diameter: 1.375 INCHES NOMINAL IN; Overall Length: 0.750 INCHES NOMINAL IN; Special Features: MATERIAL IS ANODIZED; ONE END IS CHAMFERED AND GROOVED, 0.093IN. LONG, 45DEG CHAMFER; 1.109IN. DIA, 0.187IN. W, 0.25IN. FROM END; OTHER END IS COUNTERBORED 0.687IN. DIA, 0.500IN. DEEP IN; Material: ALUMINUM. 2 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.