Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HK5L5100-072-156 found under Catch Flush by Ho Ho Kus Inc. The National Stock Number assigned to this part is 5340010674741, 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 HK5L5100-072-156.