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PBX-9404 [r]: 94% HMX, 3% NC, 3% Tris(2-chloroethyl)phosphate (CEF); used in B43; W48 nuclear warhead for 155mm howitzer; W50 for early Pershing and for Nike Zeus ABM; W55 warhead for UUM-44 SUBROC anti-submarine weapon; W-56; B57 tactical bomb and depth charge Mod 2, B61 bomb Mods 0, 1, 2, 5, and W69 warhead for AGM-69 SRAM; serious safety problems with a number of weapons withdrawn