Part Number 131820B-NB015 040 Wall 1 50X3 64 1 5 In Duct O in stock with ready to ship. Get an instant quote for Textool Production Co Inc part number 131820B-NB015 by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for 131820B-NB015. Our dedicated account manager will get back to you within 15 minutes.