TVA6 TRIGGER VALVE ASSY BOSTITCH | Fits N50, N55, N57, N60, N63, N65, N70, N80, N86, N90; Also N100, 650, 750, 850, 863, T55, T60, RN45, N95RHN. Kit includes Bostitch TVA6 trigger assembly, valve assembly, lubricant, two orifice caps. Spring pin punch, complete instructions.