AIA/NAS 4003-2010 pdf download FASTENER, A286 CORROSION RESISTANT ALLOY, EXTERNALLY THREADED, 1 60 KSI Ftu, 95 KSI Fsu, 1 000 °F
SCOPE AND CLASSES
This specification defines the requirements for corrosion resistant steel externally threaded fasteners procured underpart 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 temperaturecapability to 1000 F unplated.
Requirements stipulated in purchase contracts, purchase orders, part standards and/or part drawings shall takeprecedence 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 Ill, andthree classes of thread lengths, Long Thread, Mid Thread and Short Thread.Type I – Tension head (hex, double hex, etc.) without a recess drive (i.e. NAS6703-6720)Type II – 100° Full flush head, long or short thread (i.e. NAS1580C)Pan head, long or short thread (ie.NAS1578C)Fillister head, long or short thread (ie. NAS1121E-1128E)Full thread (threaded to the head) (i.e. NAS1802)Type III – 100 Reduced flush head, long or short thread (i.e. NAS1581C)
Workmanship of fasteners shall be in conformance with aircraft fastener manufacturing processes
Recommendations for improvements or corrections to this specification should be directed to an NASC representativeof a using company or to the Executive Secretary of the National Aerospace Standards Committee.
Specifications listed herein, of the issue in effect on date of inquiry, are a part of this specification to the extentindicated. In the case of conflict, the requirements herein shall take precedence.
Should a using company require qualification testing for any product specifying this document, a report for the specificproduct and product diameter shall be generated by the product manufacturer from product of sufficient shank andthread length to yield inspection and test data for all requirements in TABLE I including tests categorized as notmandatory. Inspection and test data shall be generated in accordance with the prescribed test methods, utilizing thesampling plan specified for a twenty-five (25) plece manufacturing lot and submitted by the product manufacturer tothe product user.
Unless otherwise specified, part inventory manufactured to previous revisions of the applicable drawing orspecification may be procured and used until stock is depleted.
2. APPLICABLE DOCUMENTS
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
ASQ Z1.4, Sampling Procedures and Tables for Inspection by Attributes
2.1.3 American Society for Testing and Materials
ASTM E 340, Standard Test Method for Macroetching Metals and Alloys
ASTM E 112, Grain Size, Average, of Metals, Estimating
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 100° Flush Head Fastener Gage Block, Gage Diameters and Stylus NASM1312 (MIL-STD-1312) Fastener Test Methods
NASM1312-1 (MIL-STD-1312-1) Fastener Test Methods, Method 1, Salt Spray
NASM1312-8 (MIL-STD-1312-8) Fastener Test Methods, Method 8, Tension Test
NASM1312-11 (MIL-STD-1312-11) Fastener Test Methods, Method 11, Fatigue Test
NASM1312-12 (MIL-STD-1312-12) Fastener Test Methods, Method 12, Thickness of Metallic Coatings
NASM1312-13 (MIL-STD-1312-13) Fastener Test Methods, Method 13, Double Shear Test
NASM1312-20 (MIL-STD-1312-20) Fastener Test Methods, Method 20, Single Shear Test
NASM1312-25 (MIL-STD-1312-25) Fastener Test Methods, Method 25, Driving Recess Torque, Quality Conformance Test
NASM14191 (MS14191) Recess, Offset Cruciform, Ribbed, Dimensions of Recess, Gage and Driver for NASM33750 (MS33750) Recess, Dovetail and Conical Dovetail, Dimensions of Recess, Gage and Driver for NASM33781 (MS33781) Recess, Offset Cruciform, Dimensions of Recess, Gage and Driver for

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