MS/NAS Gurus please come hither.
MS/NAS Gurus please come hither.
(OP)
Greetings fellow Eng-Tippers. Today I bring a query that regards hardware substitution in an aircraft manufactured by McDonnell-Douglas. (DC-9-50)
I need to find a bolt similar to HL11VAZ-6 but WITHOUT flush head and WITH either a hex or phillips slot. I know it's a long shot but maybe one of you has used something like this recently.
Background: We are installing antenna structure that utilizes 0.071" thick doubler on belly section of fuselage, around STA1050. Problem is that the Hi-Lok's collar is falling under the Longeron flanges and as a result we cannot tighten collars properly. We can fit a wrench alright, but it would be to install a simple nut such as MS21043 not a double-height HL collar.
Any help is greatly appreciated. I am also looking through SRM's substitutions section in hopes of finding something compatible. I attached a quick sketch of the section in order to give you guys a better visual of my problem.
Cheers,
uGLay.
I need to find a bolt similar to HL11VAZ-6 but WITHOUT flush head and WITH either a hex or phillips slot. I know it's a long shot but maybe one of you has used something like this recently.
Background: We are installing antenna structure that utilizes 0.071" thick doubler on belly section of fuselage, around STA1050. Problem is that the Hi-Lok's collar is falling under the Longeron flanges and as a result we cannot tighten collars properly. We can fit a wrench alright, but it would be to install a simple nut such as MS21043 not a double-height HL collar.
Any help is greatly appreciated. I am also looking through SRM's substitutions section in hopes of finding something compatible. I attached a quick sketch of the section in order to give you guys a better visual of my problem.
Cheers,
uGLay.
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RE: MS/NAS Gurus please come hither.
but hush, i can "feel" Will Talyor approaching ... ;)
RE: MS/NAS Gurus please come hither.
SW2009 Office Pro SP2.1
Intel Core 2 Duo CPU
2.2GHz, 2.00GB RAM
QuadroFX 3700
SpacePilot
RE: MS/NAS Gurus please come hither.
RE: MS/NAS Gurus please come hither.
SW2009 Office Pro SP2.1
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2.2GHz, 2.00GB RAM
QuadroFX 3700
SpacePilot
RE: MS/NAS Gurus please come hither.
im making a special tool in solidworks, we'll see how fast the machine shop can bang it out.
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RE: MS/NAS Gurus please come hither.
Have you tried a PIC239-x pin/screw?
They are best described as a c/s Hi-Lok pin with a Phillips recessed head.
They are used on the DC9-MD80.
RE: MS/NAS Gurus please come hither.
thanks for the recommendation. where can i find full spec of such part? who made this PIC part, just curious.
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RE: MS/NAS Gurus please come hither.
RE: MS/NAS Gurus please come hither.
thanks a lot for your help and sorry for the inconvenience.
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RE: MS/NAS Gurus please come hither.
Let's save some time here, tell me how to do it. Can't find anywhere to upload on that site.
RE: MS/NAS Gurus please come hither.
I am testing it out with HL11 PDF specs.
htt
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RE: MS/NAS Gurus please come hither.
RE: MS/NAS Gurus please come hither.
DAMN. Thanks a lot Dan!
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RE: MS/NAS Gurus please come hither.
I know from past experience about the e-address rules.
Didn't mean to break them.
RE: MS/NAS Gurus please come hither.
-Kirby
Kirby Wilkerson
Remember, first define the problem, then solve it.
RE: MS/NAS Gurus please come hither.
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RE: MS/NAS Gurus please come hither.
This may be an obvious question, however I am going to ask it anyway.
Did you try cutting off the short end of the key, until it just fitted between the top of the pin and the stringer?
From your original sketch, it looked as if you had enough room to do that.
B.E.
RE: MS/NAS Gurus please come hither.
-Kirby
Kirby Wilkerson
Remember, first define the problem, then solve it.
RE: MS/NAS Gurus please come hither.
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RE: MS/NAS Gurus please come hither.
Do download the paper I attached in a previous post. The PIC bolts are real handy sometimes. They are production parts on the MD-80 if my memory is right.
RE: MS/NAS Gurus please come hither.
I looked at it. I'm going to keep it in mind the next time I run into that problem. This is a better solution then drilling a hole if you can get the fasteners in a reasonable amount of time. Thanks for the info.
-Kirby
Kirby Wilkerson
Remember, first define the problem, then solve it.
RE: MS/NAS Gurus please come hither.
You need a protruding or flush head screw?? You confused me right off the bat
There are plenty of flush-shear head, flush tension head and PH bolts with various recess designs!!!!
Any space to install nutplates or gang-channel NPs???
Regards, Wil Taylor