Common O ring kits and trigger valve kits for Bostitch tools Wilson October 03, 2020 18:18 Please see attachment for common O ring kits (ORK) and trigger valve kits (TVA) for Bostitch tools. Related articles What nails will fit an N80S or N80SB nailer? What types of trigger can the SB-1664FN use? N62FN trigger valve Where can I purchase repair parts for my Bostitch tools? Why is my pneumatic nailer bending the nails? Comments 0 comments Please sign in to leave a comment.