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  #1  
Old 11-24-2013, 09:06 AM
Stockmanreef Stockmanreef is offline
 
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Location: Midland, mi
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Default Stall Horn Washers Question

SO I am trying to assemble the stall horn today and can't find the washers. I finally look at the packing list to find 30 of the large washers in the attached picture and none of the correct washers. The small washers were the supposed to be NAS1149FN432P. So now I have a bunch of washers of unknown size.

I happen to have purchased a bunch of random nuts bolts and washers from the yardstore. I would like to know if the one I am using are a good substitute. They are labeled AN960-4. I also have AN960-4L. I think that the latter are too thin and would take a lot more washers to stall horn assembled.

It worries me a bit when the correct parts are not in the bags.


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  #2  
Old 11-24-2013, 09:08 AM
Stockmanreef Stockmanreef is offline
 
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here is a picture of the stallhorn with the AN960-4 washers. It looks OK to me.

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  #3  
Old 11-24-2013, 09:56 AM
Ron B. Ron B. is offline
 
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AN960-4L and AN960-4 are the washers called out on the RV-10 stall warning sub assembly which is identical to the RV-14 assembly. I think someone just took the 432 part of the number of the NAS number for the -4. I used the AN960-4 washers on mine.
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  #4  
Old 11-24-2013, 10:07 AM
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az_gila az_gila is offline
 
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Must be a typo...

The NAS number is for a much smaller #4 washer...

http://www.fastenal.com/web/products...Punchout=false

Type:Flat Washer
Bolt Size:#4
Outer Diameter:0.312"
Finish:Cadmium
Inner Diameter:0.125"
Mil-Spec Number:NAS1149FN432P
Thickness:0.032"
Material:Steel
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  #5  
Old 11-24-2013, 10:43 AM
Stockmanreef Stockmanreef is offline
 
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I think that they put in the wrong washers. I don't think that it is a typo. If it was a typo, then I would have been able to find the washers somewhere.

Luckily, I got them about a month ago when I bought a bunch of stuff from the yardstore.
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  #6  
Old 11-24-2013, 01:42 PM
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az_gila az_gila is offline
 
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Quote:
Originally Posted by Stockmanreef View Post
I think that they put in the wrong washers. I don't think that it is a typo. If it was a typo, then I would have been able to find the washers somewhere.

Luckily, I got them about a month ago when I bought a bunch of stuff from the yardstore.
Well, something is a typo, because that MS number is not AN4 hardware as the bag calls for...

It does not replace an AN960-416L as the typed description says.
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  #7  
Old 11-24-2013, 02:00 PM
Ron B. Ron B. is offline
 
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I would say the plans are in error here and whom ever made the list used the plans to as a reference. The bag has what the RV-14 plans call for, but that is not what the RV-10 plans call for. The washers called out for the RV-10 application make more sense and that is what I used. I have been wrong once before!!
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  #8  
Old 11-24-2013, 02:08 PM
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rvbuilder2002 rvbuilder2002 is offline
 
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Quote:
Originally Posted by Stockmanreef View Post
SO I am trying to assemble the stall horn today and can't find the washers. I finally look at the packing list to find 30 of the large washers in the attached picture and none of the correct washers. The small washers were the supposed to be NAS1149FN432P. So now I have a bunch of washers of unknown size.

I happen to have purchased a bunch of random nuts bolts and washers from the yardstore. I would like to know if the one I am using are a good substitute. They are labeled AN960-4. I also have AN960-4L. I think that the latter are too thin and would take a lot more washers to stall horn assembled.

It worries me a bit when the correct parts are not in the bags.


I think you are looking in the wrong bag.
The portion of the list you posted (AN4 hardware) is 1/4" inch sized fasteners. An AN960-416 Washer has a 1/4 " hole. An AN960-4 has a hole sized for a #4 screw. Leaving a couple of digits of a part # can make it and entirely different part.
I admit it can get confusing with the conversion from AN to MS part #'s, but it is what it is.
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  #9  
Old 11-24-2013, 02:55 PM
Ron B. Ron B. is offline
 
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Yep , I'm wrong again. Man those part numbers are long. The bag the OP needs is 3017. 20 washers there.
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  #10  
Old 11-24-2013, 05:50 PM
Stockmanreef Stockmanreef is offline
 
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Thanks Ron. I finally found them.
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