Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SB-30MMK found under Bit Wire Wrapping Tool by O K Intl Inc. The National Stock Number assigned to this part is 5130001344572, 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 SB-30MMK.