42 documents in this book for reference only, not intended for design. not guaranteed for accuracy . genuine aircraft hardware co. nas1801 and nas 1802 screw, hex head, cruciform recess, full thread, 160,000 psi tensile minimum alloy steel and a286 corrosion resistant steel these replace nas1096 of same sizes. material: nas1801 -- alloy steel, 160-180 ksi tensile strength NAS1802 -- cres-a286, precipitation hardened to 160-190 ksi finish: cadmium plate per qq-p-416, type ii, close 2, all nas1801, NAS1802 with (p) code at end. passivate per qq-p-35, NAS1802 with no (p) code at end. code: first dash number indicates diameter; second dash number indicates length in 1/16 inch increments. no letter after first dash number indicates undrilled head. letter ?after first dash number indicates drilled head (-3 thru -6 sizes only). letter ?ollowing second dash number indica tes cadmium plate (NAS1802 only). example of part numbers: nas1801-4-16 = 1/4 - 28, screw, one inch long, alloy steel nas1801-04-12 = 4 - 40, screw , .750 inch long, alloy steel NAS1802-4-16 = 1/4 - 28 unjf-3a screw, 1.000 long, passivated, steel NAS1802-4d16p = 1/4 - 28 unjf-3a screw, drilled head, 1.000 long, cadmium plated, a286 material all original t ext, t ables and drawings are copyright ?by genuine aircraft hardware co. 2005 part # gah-2139 4 way screwdriver small & handy free datasheet http://www..net/
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