Gun Parts Piston Dive 883-471 Eplacement Hitachi N65AK N65AK2 Hitachi Nail Gun The Basics of Treadmill Lubricant Heat treated tool steel 6150 - Rockwell hardness 50-52, Aerospace grade #2024 Aluminum piston, Mechanically locked piston driver interface A brand-new, unused, unopened, undamaged item in its original packaging. Hitachi 882283 Piston Driver - BC Fasteners & Tools Package Includes: 883-471 Aftermarket Piston Driver 1 pcs. A brand-new, unused, unopened, undamaged item in its original packaging Return refund: If you have any questions, you can refund in full without any problems Heat treated tool steel 6150 - Rockwell hardness 50-52, Aerospace grade #2024 Aluminum piston, Mechanically locked piston driver interface 883-471 Afterarket Piston Driver For Hitachi NR65AK2 NR65AK NR65AK(S...