A metallic outer shell designed for containing water for surrounding the manifold exhaust which helps cool the exhaust gases and also helps absorb sound. It has water port inlets and outlets.
NSN 6110-01-278-9229
NSN 5950-00-173-3475
NSN 5935-01-146-3782
NSN 5990-01-548-3711
NSN 5985-00-253-7697
NSN 7035-01-555-7239
NSN 7035-00-140-3070
NSN 6220-01-443-9315
NSN 5855-00-151-3853
NSN 5915-01-055-9248
NSN 5920-01-361-7812
NSN 5930-01-004-1423