>> Search results for: 21C3649P010 NSN Search Results National Stock Number (NSN) Description 5120-01-004-2123, 5120010042123 WRENCH,CORE LOCKNUT 5120-01-004-2123 , 5120010042123 WRENCH,CORE LOCKNUT 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