O Ring Boss Seal Design

A standard application for an o ring is sealing a tube fitting.

O ring boss seal design. In order to seal properly the o ring has to deform in the application by being compressed and stretched in any number of ways. All seals is a world leader in supply of high quality o rings seals engineered rubber and plastic products which serves the sealing needs of clients since 1958. The design charts below show the standard boss designs that are used for this purpose. Boss seals the as568 901 through 932 o ring sizes parker s 3 series are intended to be used for sealing straight thread tube fittings in a boss.

These charts list port dimensions per as5202 and j1926 and fitting ends per as4395. 4 5 boss seals the as568 901 through 932 o ring sizes parker s 3 series are intended to be used for sealing straight thread tube fi ttings in a boss. O ring face seal orfs sae j1453 this connection is designed for leak free use to 6000 psi. The o ring in the face of the straight thread male end seals against the flat face female seat and is mechanically held in place by a swivel nut.

As4395 is a fitting end that corresponds with as5202 bosses. O ring sizes are detailed in sae j1926. Designing the parts of an application where o rings will be applied is broadly termed o ring groove design. Design table 4 3 and design table 4 4 show the two standard boss designs that are used for this purpose.