NAS 4002 Rev. 12 PDF Download


Fasteners, Alloy Steel, Externally Threaded, 160 Ksi Ftu, 95 Ksi Fsu, 450 Degrees F
Data Sheet by Aerospace Industries Association – National Aerospace Standard, 07/31/2020

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NAS4002 defines the requirements for alloy steel externally threaded fasteners procured under part numbers listed on drawings which refer to this specification. Typically these fasteners are used for tension, shear, and tension fatigue applications where 160 KSI Ftu and 95 KSI Fsu is desired with a service temperature capability to 450° F.

Requirements stipulated in purchase contracts, purchase orders, part standards and/or part drawings shall take precedence over requirements stated herein. Receiving contractors may reject any lot which does not conform.

The specification includes mechanical property requirements for three classes of fasteners, Types I, II and III.

Product Details

Rev. 12