Specifications include, but are not limited to: MODEL - QUALITY PARTS New or latest product model with latest standard equipment including items specified. Proven in service; experimental or untried equipment not acceptable. Fabricated in a first-class workmanlike manner from good quality material applicable to service intended, requiring a minimum of maintenance. Parts available without undue delay. METAL Unless otherwise specified, low alloy high tensile steel Grade 50 in accordance with ASTM A607. Steel gauges specified are U.S. steel gauges and are minimums. POWER TAKE OFF Install where specified or required for proper operation. Equipped with antifriction bearings on all shafts. Preferred maximum length of drive shaft from power take off to pump 36 inches. Any shaft exceeding 36 inches must be approved by Fleet Services Manager or his/her designee prior to supplying the vehicle.