Part Number 240-0321-21SPF4K5-18K Rectangular Connectors in stock with ready to ship. Get an instant quote for Glenair Inc part number 240-0321-21SPF4K5-18K by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for 240-0321-21SPF4K5-18K. Our dedicated account manager will get back to you within 15 minutes.