>> Search results for: WH196GPBTY4SZ40GALLONS NSN Search Results National Stock Number (NSN) Description 4520-01-321-7045, 4520013217045 HEATER,WATER,GAS 4520-01-322-0699 , 4520013220699 HEATER,WATER,GAS 1 Related Inventory Search You can use this search box to continue searching. Search parameters can include any combination of characteristics, specifications, description, partial part numbers, NSN or other stocking number. Special characters are not needed and are automatically stripped before searching. Do you sell this part? Become part of our growing pool of certified suppliers. Send Information