Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HS32-4 found under Collar Pin Rivet by Satair A S. The National Stock Number assigned to this part is 5320007206541, 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 HS32-4.