>> Search results for: PRT399 NSN Search Results National Stock Number (NSN) Description 5120-01-399-9199, 5120013999199 Cancelled -> Replaced by 5120015725892 5120-01-572-5892 , 5120015725892 PLIERS,RETAINING RING 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