Please fill out the form below for Block Tackle and get a quote for part number SW34142 by Drs Sustainment Systems Inc with NSN 3940013247556 and FSC Name is 3940 Blocks Tackle Rigging and Slings, 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 SW34142. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.