Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RE31 found under Adapter Electrical Conduit by Crouse Hinds Electro. The National Stock Number assigned to this part is 5975010186492, and the Federal Supply Class is 5975 Electrical Hardware And Supplies. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RE31.