Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AD616SB found under Rivet Blind by Emhart Fastening Teknologies. The National Stock Number assigned to this part is 5320998917047, and the Federal Supply Class is 5320 Rivets. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AD616SB.