A place where restoration project-type threads can go to avoid falling off the main page in the WIX hangar. Feel free to start threads on Restoration projects and/or warbird maintenance here. Named in memoriam for Gary Austin, a good friend of the site and known as RetroAviation here. He will be sorely missed.
Mon Feb 01, 2010 9:12 am
These are Douglas "Special Bolts'
I do not know the material or length .
They are for exhaust collector ring.
I believe they are low carbon steel..
Douglas Part # ---- DIA/Thread
141831-4-6 ---- 1/4-28
141831-4-14 ---- 1/4-28
141831-5-26 ---- 5/16-24
can anyone get me an AN or MS number?
Wed Feb 03, 2010 12:45 pm
Are you looking for sources for them?
PJ
PV-2 Harpoon "Hot stuff"
www.amhf.org
Wed Feb 03, 2010 12:52 pm
I think that had an AN or MS number been available they would have just used that.
What makes you think they are low carbon steel? I would guess they are Inconel or CRES.
Wed Feb 03, 2010 1:30 pm
I'm just going by the description in the manual..
It says LC Steel.
Wed Feb 03, 2010 2:08 pm
Maybe that is "Low Corrosion" Steel?
Wed Feb 03, 2010 2:42 pm
Possibly. Either way the AN #s will cover it.
Wed Feb 03, 2010 3:34 pm
My metallurgy expert tells me that low carbon steel would be inappropriate for an exhaust area. I'm still checking on those part numbers...
Wed Feb 03, 2010 4:01 pm
Usable replacement bolts would be AN4C/AN5C or NAS6704/NAS6705.
Dimensions and dash numbers are the same as for an AN bolt, only the material is different.
Send me your e-mail address. The drawing was originally released in 1934 and the bolt is made from corrosion resistant steel bar.
Thu Feb 04, 2010 5:41 pm
OK.. LC means Low Corrosion.. Got it. Thanks.
email:
airlift48@aol.comThanks!
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