This specification covers one type of organic fiber in the form of yarn. The product shall be formed as a multiplicity of filaments drawn together and gathered into an approximately parallel arrangement.
SAE AMS3901/2C-1998 history
1998SAE AMS3901/2C-1998 Yarn, Organic Fiber (Para-Aramid), High Modulus OY 390 (2689)/23.8 Tensile Strength, 17.5 (121)/950 Tensile Modulus 380 Denier,(420 d tex), 0.6% Finish