Aluminum 4 inch dust cap. Goes on coupler. Emco wheaton valves for bottom loading and unloading
NSN 5855-01-165-6361
NSN 5950-00-144-4139
NSN 6650-00-161-4122
NSN 6650-01-526-5024
NSN 6150-01-416-3180
NSN 2925-01-197-7864
NSN 5920-01-642-8410
NSN 5855-01-020-7982
NSN 5999-00-961-8135
NSN 5895-00-101-0718
NSN 6320-00-823-2015
NSN 5998-00-538-6037