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The world's best reference for structural steel welding updated for 2008.
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The Aerospace Industries Association

AIA represents the nation's major manufacturers of commercial, military and business aircraft, helicopters, aircraft engines, missiles, spacecraft, materials, and related components and equipment.

Most Popular Titles From AIA:

NAS 6203 THRU 6220 Bolt, Tension, Hex Head, Close Tolerance, Alloy Steel, Short Thread, Reduced Major Thread Dia., Self-Locking and Nonlocking, 160 Ksi Ftu
NAS 673 Bolt, Close Tolerance - Hexagon Head, Titanium, .190 to .500
NAS 6603 THRU 6620 Bolt, Hex Head, Close Tolerance, Alloy Steel, Long Thread, Self-Locking and Nonlocking
NAS 6703 THRU 6720 Bolt, Hex Head, Close Tolerance, A286 Cres, Long Threads, Self-Locking and Nonlocking
NAS 1352 Screw, Cap, Socket Head Undrilled and Drilled, Plain and Self-Locking Alloy Steel, Corrosion-Resistant Steel and Heat-Resistant Steel, Unrc-3A and Unrc-2A
NAS 1611 Packing, Ethylene Propylene Preformed O-Ring Phosphate Ester Resistant (-65F to 250/300F)
NAS 1612 Packing, Ethylene Propylene Preformed Straight Thread Tube Fitting Boss, Phosphate Ester Resistant -65F to 250/300F
NAS 1613 Seal Element, Packing, Preformed, Ethylene Propylene Rubber
NAS 1401 Washer, Radius
NAS 1580 Bolt, 100 Flush Head, 95 Ksi Shear
NAS 1803 Nut, Plate, Self-Locking, Two Lug, Floating, Spring Loaded