>> Search results for: 020056923F NSN Search Results National Stock Number (NSN) Description 4320-99-147-3307, 4320991473307 BACK PUMP,UNC TAPPI 2040-99-957-4877 , 2040999574877 BACK PUMP 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