O Ring Boss Seal Design

O ring sizes are detailed in sae j1926.

O ring boss seal design. Design table 4 3 and design table 4 4 show the two standard boss designs that are used for this purpose. The design charts below show the standard boss designs that are used for this purpose. These charts list port dimensions per as5202 and j1926 and fitting ends per as4395. 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 of the groove where the o ring sits plays a major role in how the o ring performs its sealing role. 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. Designing the parts of an application where o rings will be applied is broadly termed o ring groove design.

Both of these bosses use the same o ring but parker seal. As4395 is a fitting end that corresponds with as5202 bosses. There are industry standards for boss fittings with a series of o rings corresponding to each boss size. 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.