Please fill out the form below for Sleeve Stop and get a quote for part number 871-20-M by National Telephone Supply Company with NSN 3990011519140 and FSC Name is 3990 Miscellaneous Materials Handling Equipment, 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 871-20-M. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.