AIA/NAS 4008-2007 pdf download FASTENERS, CORROSION RESISTANT NICKEL ALLOY 718,EXTERNALLY THREADED, 220 KSI Ftu, 125 KSI Fsu, 900° F
SCOPE AND CLASSES
1.1This specification defines the requirements for externally threaded fasteners produced from a corrosionresistant alloy and 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 220 KSFtu and 125 KSI Fsu is desired with a service temperature capability to 900° F (see Table ll and IV).
1.2Requirements stipulated in purchase contracts, purchase orders, part standards and/or part drawingsshall take precedence over requirements stated herein. Receiving contractors may reject any lot whichdoes not conform.
1.3This specification delineates requirements for four different fastener categories, Type l, Type ll, Type lland Type IV. Each of these four fastener types incorporate different mechanical properties as prescribedin Table lll and Table IV and different head configurations described as follows.Typel-External Wrenching Tension Head (double hex, spline).Type Il -External Wrenching Shear Head (double hex, spline).Type Ill -100°Flush Tension Head that specify an internal wrenching device.Type IV – 100°Reduced Flush Head that specify an internal wrenching device.
1.4 Workmanship of fasteners shall be in conformance with aircraft fastener manufacturing processes.
1.5Recommendations for improvements or corrections to this specification should be directed to an NASCrepresentative of a using company or to the Executive Secretary of the National Aerospace StandardsCommittee.
1.6Specifications listed herein, of the issue in effect on date of inquiry, are a part of this specification to theextent indicated. In the case of conflict, the requirements herein shall take precedence.
1.7Should a using company require qualification testing for any product specifying this document, a reportfor the specific product and product diameter shall be generated by the product manufacturer fromproduct of sufficient shank and thread length to yield inspection and test data for all requirements inTABLE l. Inspection and test data shall be aenerated in accordance with the prescribed test methodsutilizing the sampling plan specified for a twenty-five (25) piece manufacturing lot and submitted by theproduct manufacturer to the product user.
1.8Unless otherwise specified, part inventory manufactured to previous revisions of the applicabledrawing or specification may be procured and used until stock is depleted.
2. APPLICABLE DOCUMENTS 5306
2.1. Industry Standards
2.1.1 American Society of Mechanical Engineers
ASME B46.1 Surface Texture (Surface Roughness, Waviness, and Lay)
2.1.2 American Society for Quality Control
ASQC Z1.4 Sampling Procedures and Tables for Inspection by Attributes
2.1.3 American Society for Testing and Materials
ASTM E 112, Grain Size, Average, of Metals, Estimating
ASTM E 340, Standard Test Practice for Macroetching Metals & Alloys
ASTM E 407, Standard Test Practice for Microetching Metals & Alloys
ASTM E 1417, Standard Practice for Liquid Penetrant Inspection
2.1.4 Aerospace Industries Association of America, National Aerospace Standards Committee NAS9800, Head Protrusion Gaging 100º Flush Head Fastener Gage Block, Gage Diameters and Stylus
NASM1312 Fastener Test Methods
AIA/NAS 4008-2007 pdf download
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