Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SK-0038 POS. 28 found under Bearing Roller Tapered by Ships Machinery International Inc. The National Stock Number assigned to this part is 3110013386932, 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 SK-0038 POS. 28.