Repair kits for Carbon Steel and Stainless Steel Valves only. 2" and larger Repair Kits includes A351 CF8M/316SS seat, stem/disc assembly, bushing and spring. When applicable, body seal and retaining screws are included. 1" and 1 1/2" ANSI 150, 300 & 600 repair kits include Buna-N body "O" ring seal, 316SS cage, disc, retaining ring & spring. 1" and 1 1/2" ANSI 900 & 1500 repair kits include Buna-N body "O" ring seal, 17-7 disc, 316SS cage, retaining ring & spring.