>> Search results for: 503S66 NSN Search Results National Stock Number (NSN) Description 5133-00-236-4028, 5133002364028 Cancelled -> Replaced by 5133004081102 5133-01-101-9816 , 5133011019816 DRILL,TWIST 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