This specification has been declared "NONCURRENT" by the Aerospace Materials Division, SAE, as of February 2009. It is recommended, therefore, that this specification not be specified for new designs."NONCURRENT" refers to those specifications which have previously been widely used and which may be required on some existing designs in the future. The Aerospace Materials Division, however, does not recommend these specifications for future use in new designs.Similar but not necessarily idential products are covered in the follwoing specifications. However, this listing is provided for information only and does not constitute authority to substitute these specifications for the "NONCURRENT" specification; ASTM A29/A29M; ASTM A510
