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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Jul 2008 Posts: 1,262 Shop Shark | | Shop Shark Joined: Jul 2008 Posts: 1,262 | PW is their abbreviation for Plain Washer, in other sheets of the TF manual it's called FW...Flat Washer. Flat washer is correct, plain washer is not.
(AN960 Washer, Flat.... Approved Feb 1942) ANSI/ASME B18.22.1 also covers washers. The ANSI standard defines Type A, B & C Plain Washers, no mention of "Flat Washers" PW and FW are both correct, just depends on which standard they were using for the washers at that time. http://www.ansi.org/about_ansi/introduction/history.aspx?menuid=1 | | |
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