Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 11304 found under Hammer Paving Breaker by S B Power Tool Co. The National Stock Number assigned to this part is 5130012161770, and the Federal Supply Class is 5130 Hand Tools Power Driven. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 11304.