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Old 11-16-2018, 07:55 PM
iamtheari iamtheari is offline
 
Join Date: Nov 2017
Location: ND
Posts: 199
Default Page 29-21 step 1 - no washers under nuts?

Page 29-21 step 1 has us bolt the roll bar bases to the fuselage. The hardware call-out is an AN4-7A bolt, one NAS-1149F0432P washer that is shown under the heat of the bolt, then through the material, and then an MS21042-4 locking nut. Should there be a washer between the nuts and the material? It just seems odd to me that there wouldn't be.
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Old 11-16-2018, 08:36 PM
Tom023 Tom023 is offline
 
Join Date: Jul 2011
Location: Cypress, TX
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Not sure but in this case I had to torque the bolt not the nut because of no clearance. I figured the washer under the bolt head prevents damage.
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Old 11-16-2018, 08:43 PM
iamtheari iamtheari is offline
 
Join Date: Nov 2017
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Quote:
Originally Posted by Tom023 View Post
Not sure but in this case I had to torque the bolt not the nut because of no clearance. I figured the washer under the bolt head prevents damage.
That makes sense. I had some fun hand-turning a socket extension with a universal joint on it to get the nuts started. Thanks for explaining.
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