>> Search results for: HF421N NSN Search Results National Stock Number (NSN) Description 5930-00-476-0403, 5930004760403 BOX,SWITCH 5930-01-236-9259 , 5930012369259 Cancelled -> Replaced by 5930004760403 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