Please fill out the form below for Control Blood Chemistry and get a quote for part number 283-305 by Curtin Matheson Scientific Inc with NSN 6550013354598 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 283-305. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.