Self-Contained Spring Return Shock Absorber, Internal Accumulator. Bumper Diameter 1.00 inch, Bumper Length .75 inch, Effective Weight 28 - 5,400 lbs, Energy 760,000 lbs/hour, Extended Length 7.44 inch, Measurement System Inch, Relief Diameter 1.15 inch, Rod Diameter .375 inch, Stroke 1.91 inch, Thread Size 1-1/4-12, Threaded Body, Type Adjustable, Thread Size (Diameter) 1-1/4 inch, Thread Size (Pitch) 12, Bumper, Rod & Relief Length 3.19 inch, Port Size 1/8 inch, Spring Diameter .99 in Next Day Fittings is an authorized Ace Controls Distributor. If you have any questions about the Ace Controls MA3350 's technical information or availability please call us at: 844-323-8752Next Day Fittings is an official Ace Controls distributor, we can offer our customers the best pricing and factory lead times. Our trained and knowledgeable staff is always ready to help with any aspect of the Ace Controls product purchasing process. Whether you need assistance from a customer service agent or a product engineering expert, Next Day Fittings is your Ace Controls partner every step of the way.