Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PM-1211-3 ITEM 23 found under Bushing Sleeve by Marine Electric Systems Inc. The National Stock Number assigned to this part is 3120014829225, 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 PM-1211-3 ITEM 23.