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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.
NAS1801 and NAS 1802
Genuine Aircraft Hardware Co.
Part # GAH-2139
4 way Screwdriver Small & Handy
MATERIAL: NAS1801 -- ALLOY STEEL, 160-180 KSI TENSILE STRENGTH NAS1802 -- CRES-A286, PRECIPITATION HARDENED TO 160-190 KSI FINISH: CODE: 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. 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 āDā AFTER FIRST DASH NUMBER INDICATES DRILLED HEAD (-3 THRU -6 SIZES ONLY).