The seal is made when the o ring is squeezed into the chamfer.
													
																	O ring boss fittings chart. 
									
	
		
	
																	Site help faq. 
																	O ring fittings can be either adjustable or non adjustable. 
																	Special order o ring materials. 
																	These charts list port dimensions per as5202 and j1926 and fitting ends per as4395. 
															
													
									
	
		
	
																	Home steel adapters sae o ring boss orb steel sae o ring boss fittings orb click here to learn more about sae orb fittings. 
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																	When mated with a female o ring boss port the o ring is trapped in a special tapered counter bore to affect the seal. 
																	Non adjustable fittings are screwed into a port where no alignment is needed. 
															
													
									
	
		
	
																	Sae straight thread o ring o ring boss sae j1926 1 and iso 11296 1. 
																	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. 
																	The o ring seals against the machined seat on the female port. 
																	6400 37 jic sae flare male x sae o ring boss orb male adapter mj x. 
															
													
									
	
		
	
																	O rings for straight thread tube fitting bosses. 
																	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. 
																	Sae j514 straight thread o ring boss orb this straight thread connection uses the same threads as the jic 37 shown above. 
															
													
									
	
		
	
																	The male connector has an o ring and a straight thread. 
																	The female port of the o ring boss has a sealing face chamfer and a straight thread.