I'm looking to design a nipple shank and socket fitting that is in accordance with MIL-DTL-83798, but can't seem to find the specs to control the design.
The parts are shown in MIL-DTL-83798_3C with generic dimensions. The nipple shank is flared inside of the nipple for a "mechanical" seal. I attached a drawing to help visualize what I'm referring to.
Nipple 1.JPGNipple Shank 1.jpg
Picture 1.jpgPicture 2.jpg
Last edited by Forza Aerospace; 07-22-2014 at 09:41 AM.
Ok, I've attached both MIL-DTL-83798-3D as well as MIL-DTL-83798 to this thread.
MIL-DTL-83798_3C.pdf
MIL-DTL-83798D.pdf
First, If this is aerospace the standard flare chamfer for aerospace is normally 37.5 degrees. You will need to verify this.
I would continue to look within the MIL spec's for supporting documents that may include the flare are dimensional data.
Last edited by Kelly_Bramble; 07-22-2014 at 09:53 AM.
Kelly Bramble, thank you for your quick response. I have the actual socket dimensions, including the flare chamfer. I'm more interested in the nipple shank dimensions. Looking through the QPL's for approved MIL-DTL-83798 fittings I've found that Eaton Aeroquip has a part number 526-10D that is very similar to what I'm looking for. I'm trying to confirm that the sealing surfaces are designed correctly.
Aeroquip 1.JPGAeroquip 2.JPG
Last edited by Forza Aerospace; 07-22-2014 at 10:34 AM.
Out of curiosity, where are you getting 37.5 degrees? I've always used 37 degrees per MS33656, I know this has been superceded by SAE-AS4395 so has it changed?Originally Posted by Kelly Bramble
Senior moment.... You're right, aerospace standard flare is 37 degrees.
Sorry!
Posting Permissions
Reply With Quote