Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number IT140R4-2 found under Receptacle Fastener by Avibank Mfg Inc. The National Stock Number assigned to this part is 5325015443015, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like IT140R4-2.