"MATT HOUSING AND FLANGE 2024 ALUMINUM ALLOY IAW QQ-A-225/6; O-RINGS AND GASKET MATT NITRILE; FIN ALUM WILL BE ANODIZED IAW MIL-A-8625 TYPE 1 OR 2 COLOR BLACK; VALVE SHALL WITHSTAND 100 PSIG W/O RUPTURE OR LEAKAGE;OPERATING TEMP RANGE MINUS 54 DEG C TO 95 DEG C; AMBIENT AIR PRESSURE 15.5 TO 1.04 PSIA; ITEM IS 3.540 IN. HIGH; 2.470 IN. MIN,2.480 IN. MAX LG; 0.865 IN. WIDE; AND HAS 4 MTG HOLES 0.154 IN. MIN,0.159 IN. MAX DIA"