>> Search results for: UP3T03B NSN Search Results National Stock Number (NSN) Description 5999-00-493-5536, 5999004935536 HEAT SINK,ELECTRICAL-ELECTRONIC 5999-14-353-5407 , 5999143535407 RADIATEUR,COMPOSANT 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