ProductsSafety & SecurityHead & Face SafetyWelding Helmet Parts & Accessories3M™3M™ Versaflo™ M-Series Helmet Welding Knob and Pivot Kit M-146SG, 1 EA/CaseItem #MMM07630894277AvailableRequest InformationEmail Product LinkSpecificationsBrand3M™Compatible With3M™ Versaflo™ Respiratory M-Series Helmet AssemblyProductWelding Helmet Knob & Pivot KitStandardsMeets ANSI Z89.1 Type I, Class G