>> Search results for: 59439A2 NSN Search Results National Stock Number (NSN) Description 4820-01-504-4783, 4820015044783 VALVE,CHECK 4820-01-504-2569 , 4820015042569 SEAT,VALVE 5330-01-503-7821, 5330015037821 Cancelled -> Replaced by 5330011365608 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