>> Search results for: 501E427DF NSN Search Results National Stock Number (NSN) Description 2990-01-431-9109, 2990014319109 OIL PUMP ASSEMBLY,ENGINE 3020-01-431-7530 , 3020014317530 Cancelled -> Replaced by 3040011284267 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