The spare part number for the strip nailer is : 890385, 877323, 877-323, 885-915,885915 PISTON DRIVER
Aftermarket Framing Nailer Piston Driver Compatible With: For HPT NR83A5, NR83A5(S), NR83A5S1, NR83A5Y, NR83A5(S)M, NR83A5M ; For Hitachi NR83A2, NR83A2(S); For Hitachi NR83A3, NR83A3S.
Piston Driver Specs: The 890385 piston driver for Hitachi framing nailer is made of aerospace-grade #2024 aluminum, and is constructed with heat-treated tool steel 6150 that boasts a Rockwell hardness of 50-52, exhibiting good toughness and making it difficult to break under high load and impact loads.
w/O-Ring Seal: The piston driver for hitachi strip nailer is equipped with an O-ring seal, helps create a tight seal between the driver and nailer's body for consistent performance.
Quick and easy to install, It can be installed in a short amount of time.