>> Search results for: M5531019B21A50MHZ NSN Search Results National Stock Number (NSN) Description 5955-01-314-3218, 5955013143218 OSCILLATOR,CRYSTAL CONTROLLED 1680-01-643-7622 , 1680016437622 FAIRING ASSEMBLY,RA 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