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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.
[ATTACH=CONFIG]1124[/ATTACH][ATTACH=CONFIG]1125[/ATTACH]
[ATTACH=CONFIG]1126[/ATTACH][ATTACH=CONFIG]1127[/ATTACH]
Ok, I've attached both [COLOR=#333333]MIL-DTL-83798-3D as well as [/COLOR][COLOR=#333333]MIL-DTL-83798 to this thread.
[/COLOR][ATTACH]1128[/ATTACH]
[ATTACH]1129[/ATTACH]
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.
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.
[ATTACH=CONFIG]1130[/ATTACH][ATTACH=CONFIG]1131[/ATTACH]
[QUOTE=Kelly Bramble;9365]Ok, I've attached both [COLOR=#333333]MIL-DTL-83798-3D as well as [/COLOR][COLOR=#333333]MIL-DTL-83798 to this thread.
[/COLOR][ATTACH]1128[/ATTACH]
[ATTACH]1129[/ATTACH]
First, If this is aerospace the standard flare chamfer for [SIZE=3][B]aerospace is normally 37.5 degrees[/B][/SIZE]. 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.[/QUOTE]
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 I've always used 37 degrees per MS33656, I know this has been superceded by SAE-AS4395 so has it changed?
[QUOTE=Forza Aerospace;9367]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 I've always used 37 degrees per MS33656, I know this has been superceded by SAE-AS4395 so has it changed?[/QUOTE]
Senior moment.... You're right, aerospace standard flare is 37 degrees.
Sorry!