>> Search results for: 51221420 NSN Search Results National Stock Number (NSN) Description 4240-01-331-4137, 4240013314137 TUBE ASSEMBLY,AIR DISTRIBUTION,R 5975-12-317-4019 , 5975123174019 GEHAEUSE, ELEKTRISC 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