Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 44B3521-119A found under Slinger Bearing by Carrier Corporation. The National Stock Number assigned to this part is 3110011064756, and the Federal Supply Class is 3110 Bearings Antifriction Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 44B3521-119A.