Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B55ES9-2X329 found under Caster Swivel by Albion Industries Inc. The National Stock Number assigned to this part is 5340007533903, 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 B55ES9-2X329.