Aluminum 4 inch dust cap. Goes on coupler. Emco wheaton valves for bottom loading and unloading
NSN 5930-01-088-6920
NSN 5985-01-080-3348
NSN 7035-01-038-9970
NSN 5855-01-380-9950
NSN 5985-01-633-9215
NSN 6150-01-152-1814
NSN 6130-01-452-2807
NSN 5935-01-354-5345
NSN 5910-01-258-4381
NSN 6135-01-603-8367
NSN 5905-00-410-4253
NSN 5930-01-152-7558