Aluminum 4 inch dust cap. Goes on coupler. Emco wheaton valves for bottom loading and unloading
NSN 5930-01-591-8313
NSN 5895-00-829-9794
NSN 5835-00-034-4976
NSN 5935-00-951-0114
NSN 7035-01-194-9482
NSN 5996-01-043-2105
NSN 6610-01-057-3408
NSN 6105-01-549-1022
NSN 5835-01-364-6830
NSN 6620-01-523-3657
NSN 6620-00-148-8307
NSN 6650-01-246-3265