This procurement specification covers inserts made from A286 alloy of the type identified under the Unified Numbering System as UNS S66286 which have self-locking internal threads and integrated locking keys to positively secure the insert against rotation when properly installed in threaded holes.
This SAE Aerospace Standard (AS) provides minimum design, installation (by manual and power methods) and removal requirements for AS3504 and AS3505 thin wall inserts and is applicable when specified on engineering drawings or in procurement documents.
Groove designs presented herein are applicable for use with machined or formed metal seals which are similar in configuration to those shown in figure 3, which operate under internal pressure or in vacuum service and which have been specifically qualified or recommended by the purchaser or the manufacturer for use with this AIR. They are also applicable for use with metal o-rings (e.g., MS9142, MS202 thru MS9205) where interchangeability with machined or formed metal seals is desired. For metal o-ring groove designs where inter-changeability is not a requirement refer to ARP 674.