Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S10 10 5364 found under Seat Helical Compression Spring by Sikorsky Aircraft Corporation. The National Stock Number assigned to this part is 5340003971388, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S10 10 5364.