Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SMC-103 ITEM 19 found under Mount Resilient Weapon System by Spiral Metals Corporation Of Baton. The National Stock Number assigned to this part is 5342012708434, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SMC-103 ITEM 19.