O Ring Boss Fittings Chart

O rings for straight thread tube fitting bosses.

O ring boss fittings chart.

O ring fittings can be either adjustable or non adjustable. Home steel adapters sae o ring boss orb steel sae o ring boss fittings orb click here to learn more about sae orb fittings. For elbows and tees backup washer and lock nut allow orientation of fitting to required direction. Sae o ring o ring boss are straight thread fittings that seal using a o ring between the thread and the wrench flats of the fitting.

Page of 1. Site help faq. These charts list port dimensions per as5202 and j1926 and fitting ends per as4395. Uno o ring boss seals with o ring compressed between hex boss of un male and 12 15 tapered bore of un o ring boss female port.

6400 37 jic sae flare male x sae o ring boss orb male adapter mj x. Non adjustable fittings are screwed into a port where no alignment is needed. 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. The male connector has an o ring and a straight thread.

Sae j514 straight thread o ring boss orb this straight thread connection uses the same threads as the jic 37 shown above. Special order o ring materials. However the 37 flare has been removed and an o ring has been added. The seal is made when the o ring is squeezed into the chamfer.

The design charts below show the standard boss designs that are used for this purpose. When mated with a female o ring boss port the o ring is trapped in a special tapered counter bore to affect the seal.