Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ZZ-H-428 TY1GRACL2 found under Hose Nonmetallic by General Services Administration Inc. The National Stock Number assigned to this part is 4720004076588, and the Federal Supply Class is 4720 Hose And Flexible Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ZZ-H-428 TY1GRACL2.