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NAS 1008 Replacement with Coase Thread Fastener

Thread starter boo1
Start date Mar 29, 2010

Status: Not open for further replies.

Mar 29, 2010

boo1

Mechanical

We are looking to replace fastener NAS 1008 1/2"-20, CRES, A-286 (UNS S66286) per AMS 5731, 140,000 PSI Min. These are used in wetted military marine environment, where galling, cross threading and fouling is a problem. We would consider a material substitution in the similar strength, and corrosion resistance (Inconel 686, ect). We are looking for a specification or recommendation for 1/2"-13 coarse thread fasteners.

Posted in Welding, bonding and Fastener section.