Part Number 4-181-820-02 Tube Assy Air Out in stock with ready to ship. Get an instant quote for Honeywell Aerospatiale Inc part number 4-181-820-02 by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for 4-181-820-02. Our dedicated account manager will get back to you within 15 minutes.