DISPLAY, OPTOELECTRONIC, INDICATOR, DIGITAL, INCANDESCENT (STYLE I), SEGMENTED, DOT PATTERN AND BAR PATTERN, TYPE RO4 (REPLACEMENT PARTS FOR TYPE RO3 DISPLAY ASSEMBLY) (SUPERSEDING MIL-R-28803/4B)
RO4型分段点模式和条形数字白炽灯(I型)光电指示器(RO3型显示器总成的更换零件)(取代MIL-R-28803/4B)