877323 Aftermarket Piston Driver for Hitachi NR83A- AL83D- NR83A2 Framing Nailer -885-915- 877-323- - SP 877-323

Aftermarket Piston Driver for Hitachi NR83A, NR83A2 Framing Nailer (885-915, 877-323) - SP 877-323 Model Information: Model # SP 877-323 Product Description: Aftermarket Hitachi Framing Nailer Piston Driver. This is a generic replacement driver with o-ring for the Hitachi NR83A, NR83A2, NR83A2(S) framing guns. locking mechanism which will not allow the driver to unscrew from the piston. Aluminum is crimped into the unilock grooves of the shaft to prevent unscrewing. Guaranteed never to unscrew. Features: Heat treated tool steel 6150 - Rockwell hardness 50-52 Aerospace grade #2024 Aluminum piston Mechanically locked piston driver interface