Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 233-0-001 REV A ITEM NO.20 found under Roller Pin by Maritime Applied Physics Corporation. The National Stock Number assigned to this part is 5315016026165, and the Federal Supply Class is 5315 Nails Machine Keys And Pins. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 233-0-001 REV A ITEM NO.20.