Troubled by Incomplete Parts Diagrams and Descriptions

I have a Farmall A.
I own about every parts manual, service manual and owner's manual made for this tractor.
Is anyone else bothered that there is an INCOMPLETE LISTING of parts in these? For example, if you look at the front hub and bearings, NO manual will show the cotter pin, nut or washer for this. WHY? Beats me. I wish I could find diagrams that show everything.
As another example, the rear of the tractor is shown very incompletely in regard to view underneath of all of the structures. If anyone has any comments or suggestions, I would be grateful to hear them. Tom in Ioway City.
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They don't show them in the blowup illustration of the parts, but they do list them. Under the axle, not the wheel. Your link isn't working for me, but if your parts catalog is the same as mine, look under #17.

Hex slotted nut, 5/8" NF
Washer 1-1/4" OD x 21/32" ID x 12 ga
Cotter pin 1/8" x 1-1/4" or 1-1/2"

I have parts manuals for the Super A, C, H, Super H, M, and 460. All the parts are there or listed in the description as Scotty says. However the diagrams often do not show how related groups of parts fit together. That you have to figure out for yourself. The diagrams and many of the service manuals are designed for experienced mechanics, which I am not, but thus far I have been able to figure it out, mostly.

I apologize. I got stuck on Tom's question about the axle nuts and didn't answer the whole question. Sorry, Tom.

You've hit the nail pretty squarely on the head, CNKS. When these tractors were newer, farms were smaller and dealers were plentiful, the parts catalog was not something the average small farmer had buried in the cultch on his bench in the shed. When he needed parts, he went to the dealer. The book was put out for the IH counterman, not for a bunch of guys like us trying to figure things out some 50 years later.

To use Tom's example, when it comes to things like fixtures, threaded bosses and the like on the underside of the transmission, if there was nothing bolted there on the bare tractor covered by the parts book, they would not have felt the need to show them.

To puzzle out where and what they are, you are likely only going to find it in the manual for the implement that might bolt up there. For example, on a different part of the tractor, the torque tube has threaded holes in the implement mounting pads. As far as the tractor parts catalog, all you'll learn is that they take #4 corks. If, however, you had a cultivator and the manual for it, it would show the proper size bolt for those holes to be used in mounting the cultivators. The same would apply to the various bosses on the tranny, diff shaft housing and final drives. As another f'r instance, the bolt sizes for some of the holes in the final drive are found under the listing for the drawbar.

Another example, on the transmission case, the parts catalog simply lists two pipe plugs on the transmission case -- a 1" with a countersunk head, and another in 3/8". Only by looking at the tranny and seeing that these are the only two pipe plugs on it (leaving out the one on the tranny cover which is listed on a different page as part of the cover) and looking at the operator's manual would you discover that the 1" is the tranny drain, and the 3/8" is the level check plug.

So it does take a little looking around, a little noodling, and having the right resources to look through. And then there's the Farmall Board for when you get stumped!

Scotty,
Thanks for taking the time to post the long explanation.
Tom

Those parts that are listed like that are almost always common hardware. Notice in the examples that there are no IH part numbers with them.