Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PH3970-1 found under Net Draft Cover by Peck And Halellc. The National Stock Number assigned to this part is 3940015508366, and the Federal Supply Class is 3940 Blocks Tackle Rigging And Slings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PH3970-1.