Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SM302S12 found under Pawl Stop by American Sawmill Machinery Co. The National Stock Number assigned to this part is 3040004830955, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SM302S12.