Genuine factory original equipment Ameritool Manufacturing heavy-duty stainless steel pneumatic gas spring assembly (Model / MPN: S2-536872). Proudly manufactured in the USA, this premium marine-grade component acts as a highly efficient counterbalance mechanism designed to provide smooth, controlled lifting and lowering assistance for heavy hatches, engine doors, storage lids, and access panels. Featuring a self-contained, oil-filled cylinder design utilizing compressed inert nitrogen gas, it delivers reliable linear force to eliminate abrupt slamming and prevent mechanical strain on your hinges. Cast from high-strength 316 marine-grade stainless steel, this robust gas strut keeps delicate internal seals completely safeguarded from aggressive saltwater pitting, raw moisture, and rust, ensuring long-term operational durability under the most demanding outdoor marine and industrial conditions.

• Key Features: Premium 316 marine-grade stainless steel construction, self-contained oil-filled pneumatic configuration for progressive dampening, integrated internal seal protection, and smooth dual-directional motion control.
• Technical Specs: Brand: Ameritool Manufacturing | Part Number / MPN: S2-536872 | Material: 316 Stainless Steel | Gas Type: Inert Nitrogen Gas | Application: Marine Hatches, Lids, and Enclosures.
• Condition Notes: This item is in used condition and exhibits standard minor cosmetic blemishes, faint outer cylinder scuffs, or light surface smudging typical of pre-owned marine hardware. The main stainless steel body and piston rod are physically flawless with no bends, deep pits, or mechanical compromises; it has been bench-tested to verify excellent pressure holding capacity and smooth, quiet extension strokes.
• Installation Notes: Secure the gas spring firmly to your application brackets using standard mounting hardware in a rod-facing-down default position to guarantee automatic internal seal lubrication and ideal end-of-stroke dampening. Ensure the targeted access lid or hatch is completely supported by a mechanical block during installation to prevent accidental injury. Avoid chipping, scratching, painting, or side-loading the polished piston rod during fastening to preserve the integrity of the pressure seals. Message with any questions!