Please fill out the form below for Insert Tube Fitting and get a quote for part number 4(.125)T23UI-B by A F Brock And Co with NSN 4730007715314 and FSC Name is 4730 Hose Pipe Tube Lubrication and Railing Fittings, 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 4(.125)T23UI-B. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.