>> Search results for: CK257 NSN Search Results National Stock Number (NSN) Description 6650-01-056-9327, 6650010569327 MICROSCOPE,OPTICAL 5985-99-756-2667 , 5985997562667 ADAPTOR 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