Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R4376 found under Pin Grooved Headles by Rogers Brothers Corporation. The National Stock Number assigned to this part is 5315003532461, and the Federal Supply Class is 5315 Nails Machine Keys And Pins. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R4376.