Need cross reference for the following:

Airlift48 · **Joined:** Sat Oct 29, 2005 7:01 pm **Posts:** 742

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?

PJ · **Posted:** Wed Feb 03, 2010 12:45 pm

Are you looking for sources for them?

PJ
PV-2 Harpoon "Hot stuff"
www.amhf.org

bdk · **Joined:** Sun May 02, 2004 1:16 am **Posts:** 11324

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.

Airlift48 · **Joined:** Sat Oct 29, 2005 7:01 pm **Posts:** 742

I'm just going by the description in the manual..
It says LC Steel.

bdk · **Joined:** Sun May 02, 2004 1:16 am **Posts:** 11324

Maybe that is "Low Corrosion" Steel?

Airlift48 · **Joined:** Sat Oct 29, 2005 7:01 pm **Posts:** 742

Possibly. Either way the AN #s will cover it.

bdk · **Joined:** Sun May 02, 2004 1:16 am **Posts:** 11324

My metallurgy expert tells me that low carbon steel would be inappropriate for an exhaust area. I'm still checking on those part numbers...

bdk · **Joined:** Sun May 02, 2004 1:16 am **Posts:** 11324

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.

Airlift48 · **Joined:** Sat Oct 29, 2005 7:01 pm **Posts:** 742

OK.. LC means Low Corrosion.. Got it. Thanks.

email:

airlift48@aol.com

Thanks!

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