Looking at different references for the same part I find the following.
One source says UR= Use size (thickness) and/or number as required.
Another says UN= Use as many as you need.
And another has no reference to use or amount.
My question is if the UR is noted then that part is required correct?
Is this one of those parts that you need but isn't listed or listed differently in the later/newer references?
One source says UR= Use size (thickness) and/or number as required.
Another says UN= Use as many as you need.
And another has no reference to use or amount.
My question is if the UR is noted then that part is required correct?
Is this one of those parts that you need but isn't listed or listed differently in the later/newer references?
