Please fill out the form below for Tube Extension and get a quote for part number 234-20 by Brunson Instrument Company Inc with NSN 4710013040153 and FSC Name is 4710 Pipe Tube and Rigid Tubing, 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 234-20. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.