Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PMS6-1X found under Seat Helical Compre by Marine Engine Specialties Div Of. The National Stock Number assigned to this part is 5340003603971, 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 PMS6-1X.