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.Organic 380 denier (420 d tex) yarn with 390 ksi (2689 MPa) or 22.0 g/d minimum tensile strength and 17.5 Msi (121 GPa) or 850 g/d minimum tensile modulus for use in general purpose composites requiring high tensile strength and high modulus of elasticity in tension.