Please fill out the form below for Dry Transfer Sheet and get a quote for part number S640 by General Services Administration Inc with NSN 7510011025155 and FSC Name is , please include required quantity along with expected turn around time. Our knowledgeable account manager will reply you shortly. Also check for the related parts for part number S640. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.