O Ring Boss Thread Chart Column to describe the fiting. an easy way to think of this is that the thread would be t. aptor on our website would be:if you have a male sae o ring boss adaptor, measure the outside diameter across the threads, for example if the fiting measures 12.7mm or 1 2” then we would call. this a 1 2” sae o ring boss. its imperial. O ring boss ports (orb) provide a seal by trapping the fitting’s o ring inside a port cavity. when a fitting is installed into the port, the o ring is trapped between the fitting body hex or washer and port cavity. straight fittings include a hex, and sometimes an additional cylindrical shoulder below the hex and above the threads, to trap.
O Ring Boss Thread Chart 4 24 parker hannifi n corporation • o ring division 2360 palumbo drive, lexington, ky 40509 phone: (859) 269 2351 † fax: (859) 335 5128 parkerorings static o ring sealing parker o ring handbook this surface shall be square with the thread p.d. within .010 t.i.r. when measured at dia. l minimum spotface diameter f l detail "a" min. Recommended sae o ring non adjustable stud assembly instructions. step 1: inspect all components for damage or contami nation. step 2: lubricate o ring and threads on tting with your hydraulic sytems uid. step 3: turn tting into port until nger tight, then torque to the value shown in the following table. Iso 261 threads & o ring seal. the male half has an o ring and a straight thread, while the female half has a machined surface, a chamfer, and a straight thread. the o ring on the male half compresses on the chamfer of the female port, to make the seal. (the iso 6149 is the same as the sae j1926 1o ring boss, except the iso 6149 has metric. 2 1 2. thread conforms to iso 263 and ansi b1.1 unified. port conforms to iso 11926 and sae j1926. commonly called straight thread o ring fittings. pitch and diameter are measured in inches, 1 1 16 12 un 2b. threads are parallel and requires o ring for pressure tight connection. thread angle is 60°. adjustable straight thread.
O Ring Boss Fitting Size Chart Iso 261 threads & o ring seal. the male half has an o ring and a straight thread, while the female half has a machined surface, a chamfer, and a straight thread. the o ring on the male half compresses on the chamfer of the female port, to make the seal. (the iso 6149 is the same as the sae j1926 1o ring boss, except the iso 6149 has metric. 2 1 2. thread conforms to iso 263 and ansi b1.1 unified. port conforms to iso 11926 and sae j1926. commonly called straight thread o ring fittings. pitch and diameter are measured in inches, 1 1 16 12 un 2b. threads are parallel and requires o ring for pressure tight connection. thread angle is 60°. adjustable straight thread. 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 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. both of these bosses use the same o. Sae orb fitting meet sae j1926 standard, and sae straight thread o ring or o ring boss (orb) is a multipurpose thread ideal for medium and high pressure hydraulic applications. the male part has a straight thread with a groove for the placement of an o ring. the female part has a straight thread, a machined surface and a chamfer to accept the o.
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