Superior Parts SP 888-033 Aftermarket Piston Driver for Hitachi NV90AG. Aluminum is crimped into the Unilok grooves of the shaft to prevent unscrewing. Our patent-pending UNILOK piston/driver is guaranteed to never unscrew our Aftermarket Piston Driver Assemblies. This part is compatible with following Hitachi model numbers: NV90AG Coil Nailer
- Heat treated tool steel 6150 - Rockwell hardness 50-52
- Aerospace grade #2024 Aluminum piston
- Mechanically locked piston driver interface
- Compatible with: Hitachi NV90AG Coil Nailer
- NV90AGSM 3-1/2 Inch Coil Framing Nailer | NV90AG(S) Nailer
- Heat treated tool steel 6150 - Rockwell hardness 50-52
- Aerospace grade #2024 Aluminum piston
- Mechanically locked piston driver interface
- Compatible with: Hitachi NV90AG Coil Nailer
- NV90AGSM 3-1/2 Inch Coil Framing Nailer | NV90AG(S) Nailer