The AIRman B2400-B39 is a versatile 3-port, 2-position push-pull valve built for reliable performance in demanding applications. This durable aluminum valve features a 1/4" NPT connection, a positive detent, and is specifically engineered for single-acting cylinders. Designed to meet or exceed OEM standards, it provides dependable control for a wide range of pneumatic systems. Width: 1.8” Height: 6.1” Thickness: 1” Cross-Reference: Tramec Sloan 320122, 320128, 320176 and 320192; Tramec Sloan 401261 and 401802; East Mfg 510-25039-22, Buyers Products BAV020, Truck Spring VS4N, Apsco VX4-N, Ridewell 1230121 and 1230087, Automann Application: Double Acting Cylinder, Suspension Dump Lifecycle: 350k -3M+ cycles depending on the application (min 10x worst case life) Temperature: -40C -180C -60 hour cycle Salt Spray: ASTM B-117-97 -5 -10 days Vibration: Resonance frequency - 1 M cycles @ 5Gs Vibration Step: Temp and cycle sweep up to 50 Gs Chemical Resistance: 48 hr Methanol assembly soak followed by 300k cycle; Additional direct seal soak -1 week Sludge: 350k cycles impingement, water and diesel oil mix Dust: ISO 12013 Arizona road dust