>> Search results for: 5021039PTNO17 NSN Search Results National Stock Number (NSN) Description 4820-01-583-1065, 4820015831065 SEAT,VALVE 4820-01-583-2404 , 4820015832404 SEAT,VALVE 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