MIL-R-53059, MILITARY SPECIFICATION: RAILWAY CAR, HOPPER, 56 - 1/2 - INCH GAGE, 100 TON, 8 WHEEL, DOMESTIC SERVICE (21-AUG-1985) [NO S/S DOCUMENT]

MIL-R-53059, MILITARY SPECIFICATION: RAILWAY CAR, HOPPER, 56 - 1/2 - INCH GAGE, 100 TON, 8 WHEEL, DOMESTIC SERVICE (21-AUG-1985) [NO S/S DOCUMENT]., This specification covers a railway steel hopper car with four bottom hoppers to transport coal in shaker service.