Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E 60MJ4W HWL 30 found under Retainer Spring by Portland Valve Llc. The National Stock Number assigned to this part is 5342012569201, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like E 60MJ4W HWL 30.