"Bob Engelhardt" wrote in message
news
I'm making a part that has an O-ring in a seat. I.e., not in a
groove. The part will be "loose" most of the time & I want the
O-ring to remain in its seat by having the seat diameter smaller
than the O-ring's nominal diameter. I.e., it'll be squeezed into
the seat. How much smaller can the seat be? The O-ring's nominal
diameter is 0.7 & its thickness is 0.1

Thanks,
Bob

http://www.parker.com/literature/O-R...ORD%205700.pdf