Nissan discontinued the fuel filter bracket on mine. Thankfully I was able to get it apart even though it’s rusted.
There are NO NOS fuel filter brackets to be had. If it breaks, you rig something with a hose clamp.
Or just leave it bouncing around, which is probably an acceptable repair for some people (not me).
Southern California has what seems like millions of D-21s still on the roads; rare to see one of them junked without major damage.