Compression Spring A2 Stainless Steel WireDia.=1.5mm OD=22~25mm Y Type Spring

Measure the bore or housing that will guide the spring. The spring OD should be slightly smaller than the bore diameter to allow free movement without binding. For a 22mm bore, select the 22mm OD variant; for a 25mm bore, select the 25mm OD variant. Always allow 0.5–1mm clearance between the spring OD and the guide bore.

Free length is the uncompressed length of the spring. Determine the maximum travel (stroke) your application requires and add the compressed (solid) height to get the minimum free length needed. We offer lengths from 10mm to 200mm — select the variant closest to your calculated free length, rounding up if between sizes.

Load capacity depends on the specific OD and free length combination. Spring rate (force per mm of deflection) varies by variant. For precise load data, contact us with your required OD, free length, and working deflection, and we can provide the corresponding spring rate. As a general guide, 1.5mm wire diameter springs in this OD range are suited for light-to-medium duty applications.

Yes. A2 (304) stainless steel offers good resistance to atmospheric corrosion, fresh water, and mild chemical exposure. It is suitable for outdoor enclosures, humid workshops, and marine-adjacent (non-immersion) environments. For full saltwater immersion, A4 (316) stainless steel would be recommended instead.

Y-Type refers to the open-coil geometry of the spring, where coils are evenly spaced along the length. This design produces a linear spring rate — meaning the force increases proportionally with deflection — which makes force prediction straightforward. It is the standard geometry for most compression spring applications including valves, latches, and actuators.

A2 stainless steel is widely used in food-contact and light medical equipment due to its corrosion resistance and ease of cleaning. However, compliance with specific food safety or medical device regulations depends on your jurisdiction and application. We recommend verifying material certifications with your regulatory body before use in certified equipment.

For prototyping or single-unit repairs, the 1 or 2-piece packs are ideal. For small production runs or keeping spares on hand, the 5 or 10-piece packs offer better value per unit. The 20-piece pack is suited for batch production or workshop stock. Select your preferred quantity in the Size (Qty) option above.