AIA/NAS 9925-2013 pdf download NATIONAL AEROSPACE STANDARD
SCOPE
This specification describes requirements for aerospace externally threaded fasteners (see 6.3) of ultimate tensilestress 180 KSI Ftu and 108 KSI Fsu. It is intended as a replacement for MIL-B-87114 for NAS part standards at the180 KSI strength level that previously called out MIL-B-87114 as the procurement specification, It is highlyrecommended that this specification not be called out on any new part standards either at the StandardsDevelopment Organization level or at the user community (company standard) level.
General Notes
1Dimensions in inches.
(2)This specification takes precedence over documents referenced herein.
3Unless otherwise specified, part inventory manufactured to previous revisions of the applicable drawing orspecification may be procured and used until stock is depleted.
4Unless otherwise specified herein, referenced documents shall be the issue in effect on date of manufacture.However, existing material inventory certified to a previous revision of the applicable material specification(sis acceptable for use until depletion.
APPLICABLE DOCUMENTS
Issue of Documents
The following documents of the issue in effect on the date of invitation for bids or request for proposal form a partof this specification to the extent specified herein.
Specifications
Military
MIL-F-8961MIL-DTL-18240
Fastener Element,Self-locking, Externally Threaded, 450F and 1200°Fastener Element,Self-locking, Threaded Fastener, 250F Maximum
Standards
Federal
FED-STD-H28
Screw-thread Standards for Federal Services
Military
MIL-STD-2073-1Standard Practice for Military Packaging
Industry Standards
The following documents form a part of this specification to the extent specified herein, Unless otherwise indicated.the issue in effect on the date of invitation for bids or request for proposal shall apply. Technical society andtechnical association specifications and standards are generally available for reference in libraries. They are alsodistributed among technical groups and using Federal agencies.
American Society for Quality
ASQ Z1.4 Sampling Procedures and Tables for Inspection by Attributes
Copies can be obtained from American Society for Quality, 600 North Plankinton, Milwaukee, Wisconsin 53203.
www.asq.org
2.2.2 American Society of Mechanical Engineers
ASME B46.1 Surface Texture (Surface Roughness, Waviness, and Lay)
Copies can be obtained from American Society of Mechanical Engineers, Two Park Ave, New York, NY 10016-5990.
www.asme.org
2.2.3 ASTM International
ASTM E112 Standard Test Methods for Determining Average Grain Size
ASTM D3951 Standard Practice for Commercial Packaging
ASTM E1417/E1417M Standard Practice for Liquid Penetrant Testing
ASTM E1444/E1444M Standard Practice for Magnetic Particle Testing
ASTM A342/A342M Standard Test Methods for Permeability of Feebly Magnetic Materials
ASTM E 1447 Standard Test Method for Determination of Hydrogen in Titanium and Titanium Alloys by Inert Gas Fusion Thermal Conductivity/Infrared Detection Method
Copies can be obtained from ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.
www.astm.org
2.2.4 Aerospace Industries Association
NAS9800 Head Protrusion Gaging, 100° Flush Head Fasteners, Gage Block, Gage Diameters and Stylus NAS1347 Identification of Male Threaded Fasteners
NASM1312 Fastener Test Methods
Copies can be obtained from Aerospace Industries Association, 1000 Wilson Blvd., Arlington, VA 22209.
www.aia-aerospace.org

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