>> Search results for: MS521491 NSN Search Results National Stock Number (NSN) Description 6140-01-210-1964, 6140012101964 Cancelled -> Replaced by 6140013051092 6140-01-446-9498 , 6140014469498 Cancelled -> Replaced by 6140015783444 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