>> Search results for: SS509212 NSN Search Results National Stock Number (NSN) Description 5310-01-331-3140, 5310013313140 NUT,PLAIN,ASSEMBLED WASHER 5310-01-407-4989 , 5310014074989 NUT,PLAIN,ASSEMBLED WASHER 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