View all text of Subpart 53.05 [§ 53.05-1 - § 53.05-5]
§ 53.05-3 - Materials (modifies HG-401.2).
Materials for valves must be in accordance with HG-401.2 of section IV of the ASME Boiler and Pressure Vessel Code (incorporated by reference; see 46 CFR 53.01-1) except that nonmetallic materials may be used only for gaskets and packing.