Need one for your F-16, F/A-18, or P-3C? Then yes - they do specialty CRTs. HUDs, MDUs, ADUs, DDUs, PMDUs, ECCMDs, and
some sweep cart (ECM) stuff.
Don't recognize the acronyms? (in Soup Nazi voice....) "No CRT for you" - all military stuff, and pricey. One UMD CRT for the older E-2C Hawkeye aircraft was ~ $21K (USD), exchange only - gotta have the dud. It had an embedded legend graticule with microchannel plate (thanks Tektronix) storage guns, and certified to 6Gs in each direction. Oh, and gold plated deflection plates - the duds were birth-to-death tracked. Freakin' O'scope size tube shipped in a 30X30X30" shipping container - one of those spring suspension kind. F/A-18A HUDs were similar - lots of mirrored phosphor elements in the CRT, aimed through optics and calibrated for deflection angle. A real bear to replace and align - we had to wait until a port visit, as catapault shots on the carrier would shake the alignment fixture. Nick (miniman82) probably can speak about the actual HUD....
Thomas and VDC made their bucks selling to the military. Spendy because it's low lot yield, and the testing alone - environmental, shock, and fluorescence/colorimetry - all very expensive to perform. Make 2000 and have a yield of 80% - who eats the 400 bad ones?? Not Uncle Sam, or Mr Trudeau - at least not directly.
Now a 21FJP22 made in the hundred of thousands with a higher yield, and lower testing threshold?
Nah, not interested, them contractors...