Popular o ring size standards include usa s as568 o ring size chart the uk s bs 1806 o ring sizing chart and japan s jis b 2401 o ring size list.
O ring specification pdf.
On o ring drive belts and their application will be found in o ring applications section iii.
Nominal cross section o rings.
Various nations and organizations have developed o ring sizing standards that are now used worldwide.
An o ring is a circular cross section ring molded from rubber figure 1 1.
O rings are the most commonly used and widely available rubber sealing rings in the market.
In order to seal properly the o ring has to deform in the application by being compressed and stretched in any number of ways.
Usa as568 o ring standard sizes are the most commonly used o ring sizes in the world.
O rings are specified by i d.
List all factors of seal application and check material.
110 70slr 10 000 size durometer material and color quantity outside diameter o d is for reference only.
The design of the groove where the o ring sits plays a major role in how the o ring performs its sealing role.
1 size catalog number 2 durometer and material 3 quantity example.
Does not conform to ms33649 8 un unf threads table u18 port detail sae j1926 1 iso 11926 1 1 nominal tube od is shown for the standard inch sizes and the conversion to equivalent millimeter sizes.
Please contact us if you are looking for a size not shown in the 5 32 group.
Prior to the common use of dial calipers many people called out a 1 inch by 1 1 4 rt o ring this was a dash 214.
An o ring seal is used to prevent the loss of a fl uid or gas.
O ring size charts note.
Dimensions of o rings in one ordering number.
O ring tolerances vary by use please refer to our o ring.
Until now o ring standards have left a gap between the 1 8 and 3 16 nominal cross sections.
The seal assembly consists of an elastomer o ring and a gland.
Order o rings online from the world s largest inventory network including custom o rings typically without tooling fees.
O ring handbook parker hannifin o ring division europe.
Static stationary or dynamic moving.
List the substance that the seal will be exposed to and check o ring material resistances in chemical compatibility table s listed in the apple seal design guide.
In de signing this new group of o rings we left spacing in the part numbers to allow us to add additional sizes should they be required.
Sae j1926 1 sae straight thread o ring port iso 11926 1 conforms to ms16142.
Refer to our standard o ring size chart to find usa as568 o ring dimensions.
The as o ring size chart has a column that shows the nominal size along side the actual size.
Originally the nominal size was just for a listing of the approximate fractional dimensions of the o ring.
