>> Search results for: UMP9400 NSN Search Results National Stock Number (NSN) Description 5310-01-251-0147, 5310012510147 LOCKNUT,SPECIAL 4320-99-737-7742 , 4320997377742 NUT,LOCK,RING 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