Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 23-855545002 found under Collarshaft by E P Barrus Limited. The National Stock Number assigned to this part is 5340016885796, 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 23-855545002.