Superior Parts SP-P2 Trigger Valve Assembly for Hitachi NR83A, NR83A2, NR83A2S Framing Nailers. Kit Includes: SP 875-644 Valve Plate SP 877-335 Trigger Valve Bushing SP 878-121 Trigger Plunger SP 878-734 Valve Packing SP 875-645R Rubber Ball SP 874-820 Plunger O-Ring SP 875-638 O-Ring
- Fits most of the Hitachi guns