Federal supply schedule, FSC group. 25. Vehicular equipment components (formerly class 8, pt. 4, and class 60), FSC class 2520 Brake lining and clutch facings (metallic), FSC class 2530. Brake-band lining (non-metallle) and Brake shoe, bonded or riveted lined, FSC class 2540. Tire chains; Nov. 1, 1959-Oct. 31, 1960; prepared by National Buying Division.