>> Search results for: 644839401 NSN Search Results National Stock Number (NSN) Description 5305-01-257-4992, 5305012574992 SCREW 5305-01-280-7695 , 5305012807695 THUMBSCREW 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