Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number H-43320 ITEM 19 found under Bolt by John Crane Inc. The National Stock Number assigned to this part is 5306011448751, and the Federal Supply Class is 5306 Bolts. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like H-43320 ITEM 19.