This specification covers an unfilled polyamide-imide plastic in the form of molded or extruded bar, rod, and shapes. This is designated as Grade 2 material per AMS3670.
SAE AMS3670/1C-2021 history
2021SAE AMS3670/1C-2021 Bars, Rods, and Shapes Produced from Unfilled Polyamide-Imide (PAI) Material