Ring Size 325

The standard sizes used by o ring manufacturers in the united states are defined by aerospace standard as568b aerospace size standard for o rings.

Ring size 325.

We have several ways to help you determine the size of the ring you want. Cut out the ring sizer and open the slot where marked. Select a size to buy standard and custom o rings from the world s largest inventory network or custom orders can be made within a few weeks. Choose your preferred sizing method.

We need to know the size of the ring early in the design process. Print the ring sizer making sure that it is printed to actual size. When printing make sure that you do not resize the page at all. Move the slider until the selected object fits between the boxes to help with proportions.

If the size is wrong simply send in your ring within 90 days of your purchase and we will resize. Take your best guess and don t sweat it. Ring sizes follow a scale of numbers and half numbers typically from ring size 3 to 13 5 for adults. Use our free ring size converter to determine your ring size by circumference or diameter.

Selecting the i don t know option will allow you to select a ring size later. This ring size method uses a tape measure approach with specific ring metrics. That document published by the society of automotive engineers sae lists the sizes of o rings in six series or groups in both inches and millimeters. Please follow the simple steps below to determine your ring size.

You will need to print it out and place it on a flat surface. If you have a ring that fits you can use this chart. Take your best guess. Women s rings are commonly between sizes 3 and 9 while men s rings are usually sized between 8 and 14.

Select i don t know. Click here to download our practical ring size guide.