Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PK933 found under by Shefford Meade Inc Judith M Wayne. The National Stock Number assigned to this part is 3120013534524, and the Federal Supply Class is 3120 Bearings Plain Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PK933.