>> Search results for: TFA12 NSN Search Results National Stock Number (NSN) Description 4920-00-142-3963, 4920001423963 SLEEVE,DIAPHRAGM SE 5340-21-912-9984 , 5340219129984 CAP,PROTECTIVE,DUST 5340-21-912-9983, 5340219129983 CAP,PROTECTIVE,DUST 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