>> Search results for: 17749REVCSHT3 NSN Search Results National Stock Number (NSN) Description 4520-01-556-1453, 4520015561453 HEATER,WATER,ELECTRIC 4520-01-556-3446 , 4520015563446 HEATING ELEMENT,ELECTRICAL,IMMER 4820-01-555-4074, 4820015554074 VALVE,SAFETY RELIEF 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