PISTON,LINEAR ACTUATING CYLINDER. Key specifications include material: STEEL CORROSION RESISTING OVERALL, bore_style: STRAIGHT SPLINE BOTH ENDS, teeth_type: SPUR, design_type: WET, corner_shape: SQUARE ALL CORNERS, thread_class: 3A EXTERNAL A. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-487-3695, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
| material | STEEL CORROSION RESISTING OVERALL |
| bore_style | STRAIGHT SPLINE BOTH ENDS |
| teeth_type | SPUR |
| design_type | WET |
| corner_shape | SQUARE ALL CORNERS |
| thread_class | 3A EXTERNAL A |
| overall_length | 1.000 INCHES NOMINAL IN |
| teeth_quantity | 12 |
| hardness_rating | 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL |
| spline_quantity | 8 BOTH ENDS |
| special_features | STEEL AISI 4140; CHROME PLATE CYLINDER 0.001-0.002 IN. IN |
| style_designator | WET, FLANGED |
| NSN | 3120-01-487-3695 |
| SPECIAL FEATURES | TWO SURFACE EXTERNAL GROOVES TO ACCOMDATE O-RINGS |
| STYLE DESIGNATOR | SOLID, PLAIN, NO OUTSIDE FLANGES |
| CORNER SHAPE | SQUARE ALL CORNERS |
| END ITEM IDENTIFICATION | ROTARY HYDRAULIC ACTUATOR MODEL 218 TDU |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B150 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | COPPER ALLOY OVERALL |