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Re: Nyloc v lock wash

To: Clayton La Baw <clabaw@jpl.nasa.gov>
Subject: Re: Nyloc v lock wash
Date: Thu, 25 Oct 2001 13:42:04 -0400
Cc: Spridgets <spridgets@autox.team.net>
User-agent: Microsoft-Entourage/9.0.1.3108
> Mike -
> 
> The fastener specialist at the hardware emporium that I patronize is
> vehement on this subject.  Never combine a (split) lock washer with an ESNA
> (elastic stop nut assembly, sometimes referred to as a 'nylock').  The
> split lock washer pushes the ESNA up and eventually defeats the locking
> capability.  This leaves the nut attached, but loosely.  I've never tried
> to  use ESNA's with star lock washers.  When fasteners are left undisturbed
> for thirty years, they tend to fuse into semi-corroded lumps having their
> own locking properties.
> 
> Clay L.
> '67 Sprite + deux chats
> 
> 
> 
> At 10:13 AM 10/25/01 -0400, Michel R. Gagne wrote:
>> Hi all,
>> I finally got my drive shaft removed last night and found that the PO had
>> installed bolts with both a nyloc and a lock wash.  Seems strange to my
>> untrained mind.  Which is best for this application and what is the best way
>> to think about using a nyloc versus a nut and lock wash.
>> Thanks again,
>> Mike Gagne
>> Chapel Hill, NC
> 




I can attest to the fact that the nyloc nuts become highly distorted when a
lock washer is used--the nylon insert on all 4 are completely trashed.  I
can only guess that the PO must have installed the lock wash when the nyloc
had lost its torque resistance.

Thanks for the info.  Now is this a good application for these types of
nuts?

Thanks,

Mike



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