>> Search results for: K521B NSN Search Results National Stock Number (NSN) Description 5355-99-635-2320, 5355996352320 KNOB 5940-15-089-9792 , 5940150899792 TERMINAL BOARD 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