Hi,

I have an engineering drawing calling for shot peening to be performed using S170-S230 cast shots, high hardness, per MMS-224. Is anybody aware of this specification as I cannot find information on it anywhere.

Thanks!

MMS-224 is an internal Mcdonnel Douglas Aircraft Specification.

Your customer is responsible for flowing it to you.

Here is a helpful index link on the net:

http://www.lgd.goodrich.com/suppliers/specindex.xls#\'MMS-36\'!A1