Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3537.MOD ITEM 27 found under Connector Rod End by Cat Pumps Corp. The National Stock Number assigned to this part is 5340012997306, 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 3537.MOD ITEM 27.